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Finding the Fourth Proportional to 386,175.60, 532,893.24 and 216,376.92

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Solution

The fourth proportional to 386,175.60, 532,893.24 and 216,376.92 is: 298,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,175.60 : 532,893.24 = 216,376.92 : x
  2. Step 2: Convert to fraction form
    386,175.60/532,893.24 = 216,376.92/x
  3. Step 3: Cross multiply
    386,175.60x = 532,893.24 × 216,376.92
  4. Step 4: Simplify right side
    386,175.60x = 115,305,797,960.02
  5. Step 5: Solve for x
    x = 115,305,797,960.02/386,175.60
  6. Step 6: Final answer
    x = 298,583.85

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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.