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Finding the Fourth Proportional to 567,422.88, 783,114.48 and 325,781.16

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Solution

The fourth proportional to 567,422.88, 783,114.48 and 325,781.16 is: 449,618.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,422.88 : 783,114.48 = 325,781.16 : x
  2. Step 2: Convert to fraction form
    567,422.88/783,114.48 = 325,781.16/x
  3. Step 3: Cross multiply
    567,422.88x = 783,114.48 × 325,781.16
  4. Step 4: Simplify right side
    567,422.88x = 255,123,943,707.20
  5. Step 5: Solve for x
    x = 255,123,943,707.20/567,422.88
  6. Step 6: Final answer
    x = 449,618.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.