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Finding the Fourth Proportional to 521,630.11, 782,352.69 and 237,254.23

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Solution

The fourth proportional to 521,630.11, 782,352.69 and 237,254.23 is: 355,839.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,630.11 : 782,352.69 = 237,254.23 : x
  2. Step 2: Convert to fraction form
    521,630.11/782,352.69 = 237,254.23/x
  3. Step 3: Cross multiply
    521,630.11x = 782,352.69 × 237,254.23
  4. Step 4: Simplify right side
    521,630.11x = 185,616,485,054.38
  5. Step 5: Solve for x
    x = 185,616,485,054.38/521,630.11
  6. Step 6: Final answer
    x = 355,839.28

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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.