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Finding the Fourth Proportional to 574,340.42, 861,639.12 and 175,012.45

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Solution

The fourth proportional to 574,340.42, 861,639.12 and 175,012.45 is: 262,557.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,340.42 : 861,639.12 = 175,012.45 : x
  2. Step 2: Convert to fraction form
    574,340.42/861,639.12 = 175,012.45/x
  3. Step 3: Cross multiply
    574,340.42x = 861,639.12 × 175,012.45
  4. Step 4: Simplify right side
    574,340.42x = 150,797,571,252.95
  5. Step 5: Solve for x
    x = 150,797,571,252.95/574,340.42
  6. Step 6: Final answer
    x = 262,557.82

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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.