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Finding the Fourth Proportional to 647,546.20, 971,319.30 and 625,773.40

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Solution

The fourth proportional to 647,546.20, 971,319.30 and 625,773.40 is: 938,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,546.20 : 971,319.30 = 625,773.40 : x
  2. Step 2: Convert to fraction form
    647,546.20/971,319.30 = 625,773.40/x
  3. Step 3: Cross multiply
    647,546.20x = 971,319.30 × 625,773.40
  4. Step 4: Simplify right side
    647,546.20x = 607,825,780,846.62
  5. Step 5: Solve for x
    x = 607,825,780,846.62/647,546.20
  6. Step 6: Final answer
    x = 938,660.10

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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.