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Finding the Fourth Proportional to 498,050.64, 687,308.42 and 271,694.52

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Solution

The fourth proportional to 498,050.64, 687,308.42 and 271,694.52 is: 374,937.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,050.64 : 687,308.42 = 271,694.52 : x
  2. Step 2: Convert to fraction form
    498,050.64/687,308.42 = 271,694.52/x
  3. Step 3: Cross multiply
    498,050.64x = 687,308.42 × 271,694.52
  4. Step 4: Simplify right side
    498,050.64x = 186,737,931,263.86
  5. Step 5: Solve for x
    x = 186,737,931,263.86/498,050.64
  6. Step 6: Final answer
    x = 374,937.64

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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.