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Finding the Fourth Proportional to 658,468.38, 987,702.90 and 185,153.73

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Solution

The fourth proportional to 658,468.38, 987,702.90 and 185,153.73 is: 277,730.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,468.38 : 987,702.90 = 185,153.73 : x
  2. Step 2: Convert to fraction form
    658,468.38/987,702.90 = 185,153.73/x
  3. Step 3: Cross multiply
    658,468.38x = 987,702.90 × 185,153.73
  4. Step 4: Simplify right side
    658,468.38x = 182,876,876,066.82
  5. Step 5: Solve for x
    x = 182,876,876,066.82/658,468.38
  6. Step 6: Final answer
    x = 277,730.69

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Double scale
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Similar ratio
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1.5x scale

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.