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Finding the Fourth Proportional to 542,801.36, 748,575.60 and 338,871.18

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Solution

The fourth proportional to 542,801.36, 748,575.60 and 338,871.18 is: 467,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,801.36 : 748,575.60 = 338,871.18 : x
  2. Step 2: Convert to fraction form
    542,801.36/748,575.60 = 338,871.18/x
  3. Step 3: Cross multiply
    542,801.36x = 748,575.60 × 338,871.18
  4. Step 4: Simplify right side
    542,801.36x = 253,670,696,891.21
  5. Step 5: Solve for x
    x = 253,670,696,891.21/542,801.36
  6. Step 6: Final answer
    x = 467,336.15

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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.