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Finding the Fourth Proportional to 361,095.39, 498,276.90 and 215,872.47

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Solution

The fourth proportional to 361,095.39, 498,276.90 and 215,872.47 is: 297,883.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,095.39 : 498,276.90 = 215,872.47 : x
  2. Step 2: Convert to fraction form
    361,095.39/498,276.90 = 215,872.47/x
  3. Step 3: Cross multiply
    361,095.39x = 498,276.90 × 215,872.47
  4. Step 4: Simplify right side
    361,095.39x = 107,564,265,146.94
  5. Step 5: Solve for x
    x = 107,564,265,146.94/361,095.39
  6. Step 6: Final answer
    x = 297,883.24

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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.