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Finding the Fourth Proportional to 386,535.62, 533,418.13 and 216,773.39

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Solution

The fourth proportional to 386,535.62, 533,418.13 and 216,773.39 is: 299,146.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,535.62 : 533,418.13 = 216,773.39 : x
  2. Step 2: Convert to fraction form
    386,535.62/533,418.13 = 216,773.39/x
  3. Step 3: Cross multiply
    386,535.62x = 533,418.13 × 216,773.39
  4. Step 4: Simplify right side
    386,535.62x = 115,630,856,327.56
  5. Step 5: Solve for x
    x = 115,630,856,327.56/386,535.62
  6. Step 6: Final answer
    x = 299,146.70

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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.