Home / 691,208.80-1,036,813.20-192,572.80

Finding the Fourth Proportional to 691,208.80, 1,036,813.20 and 192,572.80

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Solution

The fourth proportional to 691,208.80, 1,036,813.20 and 192,572.80 is: 288,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,208.80 : 1,036,813.20 = 192,572.80 : x
  2. Step 2: Convert to fraction form
    691,208.80/1,036,813.20 = 192,572.80/x
  3. Step 3: Cross multiply
    691,208.80x = 1,036,813.20 × 192,572.80
  4. Step 4: Simplify right side
    691,208.80x = 199,662,021,000.96
  5. Step 5: Solve for x
    x = 199,662,021,000.96/691,208.80
  6. Step 6: Final answer
    x = 288,859.20

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Double scale
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Similar ratio
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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.