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Finding the Fourth Proportional to 522,966.60, 784,449.90 and 363,534.30

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Solution

The fourth proportional to 522,966.60, 784,449.90 and 363,534.30 is: 545,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,966.60 : 784,449.90 = 363,534.30 : x
  2. Step 2: Convert to fraction form
    522,966.60/784,449.90 = 363,534.30/x
  3. Step 3: Cross multiply
    522,966.60x = 784,449.90 × 363,534.30
  4. Step 4: Simplify right side
    522,966.60x = 285,174,445,281.57
  5. Step 5: Solve for x
    x = 285,174,445,281.57/522,966.60
  6. Step 6: Final answer
    x = 545,301.45

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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.