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Finding the Fourth Proportional to 539,166.78, 744,384.33 and 378,670.14

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Solution

The fourth proportional to 539,166.78, 744,384.33 and 378,670.14 is: 522,799.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,166.78 : 744,384.33 = 378,670.14 : x
  2. Step 2: Convert to fraction form
    539,166.78/744,384.33 = 378,670.14/x
  3. Step 3: Cross multiply
    539,166.78x = 744,384.33 × 378,670.14
  4. Step 4: Simplify right side
    539,166.78x = 281,876,118,454.91
  5. Step 5: Solve for x
    x = 281,876,118,454.91/539,166.78
  6. Step 6: Final answer
    x = 522,799.49

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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.