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Finding the Fourth Proportional to 627,272.60, 940,908.90 and 153,951.80

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Solution

The fourth proportional to 627,272.60, 940,908.90 and 153,951.80 is: 230,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,272.60 : 940,908.90 = 153,951.80 : x
  2. Step 2: Convert to fraction form
    627,272.60/940,908.90 = 153,951.80/x
  3. Step 3: Cross multiply
    627,272.60x = 940,908.90 × 153,951.80
  4. Step 4: Simplify right side
    627,272.60x = 144,854,618,791.02
  5. Step 5: Solve for x
    x = 144,854,618,791.02/627,272.60
  6. Step 6: Final answer
    x = 230,927.70

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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.