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Finding the Fourth Proportional to 437,561.10, 656,414.55 and 171,330.30

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Solution

The fourth proportional to 437,561.10, 656,414.55 and 171,330.30 is: 257,023.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,561.10 : 656,414.55 = 171,330.30 : x
  2. Step 2: Convert to fraction form
    437,561.10/656,414.55 = 171,330.30/x
  3. Step 3: Cross multiply
    437,561.10x = 656,414.55 × 171,330.30
  4. Step 4: Simplify right side
    437,561.10x = 112,463,701,775.87
  5. Step 5: Solve for x
    x = 112,463,701,775.87/437,561.10
  6. Step 6: Final answer
    x = 257,023.99

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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.