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Finding the Fourth Proportional to 641,589.60, 962,384.40 and 536,613.60

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Solution

The fourth proportional to 641,589.60, 962,384.40 and 536,613.60 is: 804,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,589.60 : 962,384.40 = 536,613.60 : x
  2. Step 2: Convert to fraction form
    641,589.60/962,384.40 = 536,613.60/x
  3. Step 3: Cross multiply
    641,589.60x = 962,384.40 × 536,613.60
  4. Step 4: Simplify right side
    641,589.60x = 516,428,557,467.84
  5. Step 5: Solve for x
    x = 516,428,557,467.84/641,589.60
  6. Step 6: Final answer
    x = 804,920.40

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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.