Home / 438,147.27-656,938.22-171,934.70

Finding the Fourth Proportional to 438,147.27, 656,938.22 and 171,934.70

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Solution

The fourth proportional to 438,147.27, 656,938.22 and 171,934.70 is: 257,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,147.27 : 656,938.22 = 171,934.70 : x
  2. Step 2: Convert to fraction form
    438,147.27/656,938.22 = 171,934.70/x
  3. Step 3: Cross multiply
    438,147.27x = 656,938.22 × 171,934.70
  4. Step 4: Simplify right side
    438,147.27x = 112,950,471,629.87
  5. Step 5: Solve for x
    x = 112,950,471,629.87/438,147.27
  6. Step 6: Final answer
    x = 257,791.11

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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.