Home / 691,092,223.70-1,036,638,335.55-432,811,897.70

Finding the Fourth Proportional to 691,092,223.70, 1,036,638,335.55 and 432,811,897.70

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Solution

The fourth proportional to 691,092,223.70, 1,036,638,335.55 and 432,811,897.70 is: 649,217,846.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,092,223.70 : 1,036,638,335.55 = 432,811,897.70 : x
  2. Step 2: Convert to fraction form
    691,092,223.70/1,036,638,335.55 = 432,811,897.70/x
  3. Step 3: Cross multiply
    691,092,223.70x = 1,036,638,335.55 × 432,811,897.70
  4. Step 4: Simplify right side
    691,092,223.70x = 448,669,405,237,964,864
  5. Step 5: Solve for x
    x = 448,669,405,237,964,864/691,092,223.70
  6. Step 6: Final answer
    x = 649,217,846.55

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Half scale
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Double scale
Find fourth proportional to 691,092,224.70, 1,036,638,337.05 and 432,811,898.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.