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Finding the Fourth Proportional to 516,233.53, 712,493.51 and 386,064.20

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Solution

The fourth proportional to 516,233.53, 712,493.51 and 386,064.20 is: 532,836.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,233.53 : 712,493.51 = 386,064.20 : x
  2. Step 2: Convert to fraction form
    516,233.53/712,493.51 = 386,064.20/x
  3. Step 3: Cross multiply
    516,233.53x = 712,493.51 × 386,064.20
  4. Step 4: Simplify right side
    516,233.53x = 275,068,236,943.34
  5. Step 5: Solve for x
    x = 275,068,236,943.34/516,233.53
  6. Step 6: Final answer
    x = 532,836.83

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1.5x scale

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.