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Finding the Fourth Proportional to 423,673.77, 635,316.63 and 252,972.97

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Solution

The fourth proportional to 423,673.77, 635,316.63 and 252,972.97 is: 379,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,673.77 : 635,316.63 = 252,972.97 : x
  2. Step 2: Convert to fraction form
    423,673.77/635,316.63 = 252,972.97/x
  3. Step 3: Cross multiply
    423,673.77x = 635,316.63 × 252,972.97
  4. Step 4: Simplify right side
    423,673.77x = 160,717,934,781.49
  5. Step 5: Solve for x
    x = 160,717,934,781.49/423,673.77
  6. Step 6: Final answer
    x = 379,343.60

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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.