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Finding the Fourth Proportional to 374,830.56, 517,581.36 and 267,729.12

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Solution

The fourth proportional to 374,830.56, 517,581.36 and 267,729.12 is: 369,691.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,830.56 : 517,581.36 = 267,729.12 : x
  2. Step 2: Convert to fraction form
    374,830.56/517,581.36 = 267,729.12/x
  3. Step 3: Cross multiply
    374,830.56x = 517,581.36 × 267,729.12
  4. Step 4: Simplify right side
    374,830.56x = 138,571,602,041.20
  5. Step 5: Solve for x
    x = 138,571,602,041.20/374,830.56
  6. Step 6: Final answer
    x = 369,691.31

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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.