Home / 829,897.40-1,244,846.10-409,118.60

Finding the Fourth Proportional to 829,897.40, 1,244,846.10 and 409,118.60

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Solution

The fourth proportional to 829,897.40, 1,244,846.10 and 409,118.60 is: 613,677.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,897.40 : 1,244,846.10 = 409,118.60 : x
  2. Step 2: Convert to fraction form
    829,897.40/1,244,846.10 = 409,118.60/x
  3. Step 3: Cross multiply
    829,897.40x = 1,244,846.10 × 409,118.60
  4. Step 4: Simplify right side
    829,897.40x = 509,289,693,647.46
  5. Step 5: Solve for x
    x = 509,289,693,647.46/829,897.40
  6. Step 6: Final answer
    x = 613,677.90

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Double scale
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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.