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Finding the Fourth Proportional to 609,053.12, 913,264.90 and 267,356.70

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Solution

The fourth proportional to 609,053.12, 913,264.90 and 267,356.70 is: 400,896.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,053.12 : 913,264.90 = 267,356.70 : x
  2. Step 2: Convert to fraction form
    609,053.12/913,264.90 = 267,356.70/x
  3. Step 3: Cross multiply
    609,053.12x = 913,264.90 × 267,356.70
  4. Step 4: Simplify right side
    609,053.12x = 244,167,489,973.38
  5. Step 5: Solve for x
    x = 244,167,489,973.38/609,053.12
  6. Step 6: Final answer
    x = 400,896.87

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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.