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Finding the Fourth Proportional to 653,464.80, 980,197.20 and 574,732.80

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Solution

The fourth proportional to 653,464.80, 980,197.20 and 574,732.80 is: 862,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,464.80 : 980,197.20 = 574,732.80 : x
  2. Step 2: Convert to fraction form
    653,464.80/980,197.20 = 574,732.80/x
  3. Step 3: Cross multiply
    653,464.80x = 980,197.20 × 574,732.80
  4. Step 4: Simplify right side
    653,464.80x = 563,351,481,308.16
  5. Step 5: Solve for x
    x = 563,351,481,308.16/653,464.80
  6. Step 6: Final answer
    x = 862,099.20

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Half scale
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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.