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Finding the Fourth Proportional to 425,123.91, 586,627.58 and 261,754.47

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Solution

The fourth proportional to 425,123.91, 586,627.58 and 261,754.47 is: 361,194.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,123.91 : 586,627.58 = 261,754.47 : x
  2. Step 2: Convert to fraction form
    425,123.91/586,627.58 = 261,754.47/x
  3. Step 3: Cross multiply
    425,123.91x = 586,627.58 × 261,754.47
  4. Step 4: Simplify right side
    425,123.91x = 153,552,391,944.67
  5. Step 5: Solve for x
    x = 153,552,391,944.67/425,123.91
  6. Step 6: Final answer
    x = 361,194.44

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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.