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Finding the Fourth Proportional to 624,138.20, 936,207.30 and 250,429.40

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Solution

The fourth proportional to 624,138.20, 936,207.30 and 250,429.40 is: 375,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,138.20 : 936,207.30 = 250,429.40 : x
  2. Step 2: Convert to fraction form
    624,138.20/936,207.30 = 250,429.40/x
  3. Step 3: Cross multiply
    624,138.20x = 936,207.30 × 250,429.40
  4. Step 4: Simplify right side
    624,138.20x = 234,453,832,414.62
  5. Step 5: Solve for x
    x = 234,453,832,414.62/624,138.20
  6. Step 6: Final answer
    x = 375,644.10

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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.