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Finding the Fourth Proportional to 627,233.60, 940,850.40 and 153,912.80

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Solution

The fourth proportional to 627,233.60, 940,850.40 and 153,912.80 is: 230,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,233.60 : 940,850.40 = 153,912.80 : x
  2. Step 2: Convert to fraction form
    627,233.60/940,850.40 = 153,912.80/x
  3. Step 3: Cross multiply
    627,233.60x = 940,850.40 × 153,912.80
  4. Step 4: Simplify right side
    627,233.60x = 144,808,919,445.12
  5. Step 5: Solve for x
    x = 144,808,919,445.12/627,233.60
  6. Step 6: Final answer
    x = 230,869.20

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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.