Home / 657,828.20-907,829.00-371,358.20

Finding the Fourth Proportional to 657,828.20, 907,829.00 and 371,358.20

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Solution

The fourth proportional to 657,828.20, 907,829.00 and 371,358.20 is: 512,489.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,828.20 : 907,829.00 = 371,358.20 : x
  2. Step 2: Convert to fraction form
    657,828.20/907,829.00 = 371,358.20/x
  3. Step 3: Cross multiply
    657,828.20x = 907,829.00 × 371,358.20
  4. Step 4: Simplify right side
    657,828.20x = 337,129,736,951.86
  5. Step 5: Solve for x
    x = 337,129,736,951.86/657,828.20
  6. Step 6: Final answer
    x = 512,489.04

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.