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Finding the Fourth Proportional to 575,141.74, 862,713.22 and 574,311.09

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Solution

The fourth proportional to 575,141.74, 862,713.22 and 574,311.09 is: 861,467.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,141.74 : 862,713.22 = 574,311.09 : x
  2. Step 2: Convert to fraction form
    575,141.74/862,713.22 = 574,311.09/x
  3. Step 3: Cross multiply
    575,141.74x = 862,713.22 × 574,311.09
  4. Step 4: Simplify right side
    575,141.74x = 495,465,769,735.61
  5. Step 5: Solve for x
    x = 495,465,769,735.61/575,141.74
  6. Step 6: Final answer
    x = 861,467.24

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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.