Home / 657,123.18-906,129.83-519,059.43

Finding the Fourth Proportional to 657,123.18, 906,129.83 and 519,059.43

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Solution

The fourth proportional to 657,123.18, 906,129.83 and 519,059.43 is: 715,748.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,123.18 : 906,129.83 = 519,059.43 : x
  2. Step 2: Convert to fraction form
    657,123.18/906,129.83 = 519,059.43/x
  3. Step 3: Cross multiply
    657,123.18x = 906,129.83 × 519,059.43
  4. Step 4: Simplify right side
    657,123.18x = 470,335,230,470.50
  5. Step 5: Solve for x
    x = 470,335,230,470.50/657,123.18
  6. Step 6: Final answer
    x = 715,748.96

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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.