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Finding the Fourth Proportional to 575,141.12, 862,712.28 and 574,310.46

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Solution

The fourth proportional to 575,141.12, 862,712.28 and 574,310.46 is: 861,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,141.12 : 862,712.28 = 574,310.46 : x
  2. Step 2: Convert to fraction form
    575,141.12/862,712.28 = 574,310.46/x
  3. Step 3: Cross multiply
    575,141.12x = 862,712.28 × 574,310.46
  4. Step 4: Simplify right side
    575,141.12x = 495,464,686,374.45
  5. Step 5: Solve for x
    x = 495,464,686,374.45/575,141.12
  6. Step 6: Final answer
    x = 861,466.30

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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.