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Finding the Fourth Proportional to 493,710.11, 681,316 and 267,355.61

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Solution

The fourth proportional to 493,710.11, 681,316 and 267,355.61 is: 368,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,710.11 : 681,316 = 267,355.61 : x
  2. Step 2: Convert to fraction form
    493,710.11/681,316 = 267,355.61/x
  3. Step 3: Cross multiply
    493,710.11x = 681,316 × 267,355.61
  4. Step 4: Simplify right side
    493,710.11x = 182,153,654,782.76
  5. Step 5: Solve for x
    x = 182,153,654,782.76/493,710.11
  6. Step 6: Final answer
    x = 368,948.60

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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.