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Finding the Fourth Proportional to 733,805.60, 1,100,708.40 and 647,200.40

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Solution

The fourth proportional to 733,805.60, 1,100,708.40 and 647,200.40 is: 970,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    733,805.60 : 1,100,708.40 = 647,200.40 : x
  2. Step 2: Convert to fraction form
    733,805.60/1,100,708.40 = 647,200.40/x
  3. Step 3: Cross multiply
    733,805.60x = 1,100,708.40 × 647,200.40
  4. Step 4: Simplify right side
    733,805.60x = 712,378,916,763.36
  5. Step 5: Solve for x
    x = 712,378,916,763.36/733,805.60
  6. Step 6: Final answer
    x = 970,800.60

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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.