Home / 657,904.73-907,911.24-356,098.73

Finding the Fourth Proportional to 657,904.73, 907,911.24 and 356,098.73

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Solution

The fourth proportional to 657,904.73, 907,911.24 and 356,098.73 is: 491,417.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,904.73 : 907,911.24 = 356,098.73 : x
  2. Step 2: Convert to fraction form
    657,904.73/907,911.24 = 356,098.73/x
  3. Step 3: Cross multiply
    657,904.73x = 907,911.24 × 356,098.73
  4. Step 4: Simplify right side
    657,904.73x = 323,306,039,516.73
  5. Step 5: Solve for x
    x = 323,306,039,516.73/657,904.73
  6. Step 6: Final answer
    x = 491,417.72

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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.