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Finding the Fourth Proportional to 437,613.10, 656,419.65 and 437,613.10

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Solution

The fourth proportional to 437,613.10, 656,419.65 and 437,613.10 is: 656,419.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,613.10 : 656,419.65 = 437,613.10 : x
  2. Step 2: Convert to fraction form
    437,613.10/656,419.65 = 437,613.10/x
  3. Step 3: Cross multiply
    437,613.10x = 656,419.65 × 437,613.10
  4. Step 4: Simplify right side
    437,613.10x = 287,257,837,937.42
  5. Step 5: Solve for x
    x = 287,257,837,937.42/437,613.10
  6. Step 6: Final answer
    x = 656,419.65

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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.