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Finding the Fourth Proportional to 493,712.60, 740,586.72 and 253,761.98

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Solution

The fourth proportional to 493,712.60, 740,586.72 and 253,761.98 is: 380,652.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,712.60 : 740,586.72 = 253,761.98 : x
  2. Step 2: Convert to fraction form
    493,712.60/740,586.72 = 253,761.98/x
  3. Step 3: Cross multiply
    493,712.60x = 740,586.72 × 253,761.98
  4. Step 4: Simplify right side
    493,712.60x = 187,932,752,428.91
  5. Step 5: Solve for x
    x = 187,932,752,428.91/493,712.60
  6. Step 6: Final answer
    x = 380,652.13

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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.