Home / 641,239.20-961,945.92-267,174.72

Finding the Fourth Proportional to 641,239.20, 961,945.92 and 267,174.72

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Solution

The fourth proportional to 641,239.20, 961,945.92 and 267,174.72 is: 400,798.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,239.20 : 961,945.92 = 267,174.72 : x
  2. Step 2: Convert to fraction form
    641,239.20/961,945.92 = 267,174.72/x
  3. Step 3: Cross multiply
    641,239.20x = 961,945.92 × 267,174.72
  4. Step 4: Simplify right side
    641,239.20x = 257,007,631,831.14
  5. Step 5: Solve for x
    x = 257,007,631,831.14/641,239.20
  6. Step 6: Final answer
    x = 400,798.38

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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.