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Finding the Fourth Proportional to 466,521.41, 699,373.86 and 387,218.97

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Solution

The fourth proportional to 466,521.41, 699,373.86 and 387,218.97 is: 580,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,521.41 : 699,373.86 = 387,218.97 : x
  2. Step 2: Convert to fraction form
    466,521.41/699,373.86 = 387,218.97/x
  3. Step 3: Cross multiply
    466,521.41x = 699,373.86 × 387,218.97
  4. Step 4: Simplify right side
    466,521.41x = 270,810,825,714.12
  5. Step 5: Solve for x
    x = 270,810,825,714.12/466,521.41
  6. Step 6: Final answer
    x = 580,489.60

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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.