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Finding the Fourth Proportional to 547,282.80, 819,541.80 and 359,276.40

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Solution

The fourth proportional to 547,282.80, 819,541.80 and 359,276.40 is: 538,007.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,282.80 : 819,541.80 = 359,276.40 : x
  2. Step 2: Convert to fraction form
    547,282.80/819,541.80 = 359,276.40/x
  3. Step 3: Cross multiply
    547,282.80x = 819,541.80 × 359,276.40
  4. Step 4: Simplify right side
    547,282.80x = 294,442,027,553.52
  5. Step 5: Solve for x
    x = 294,442,027,553.52/547,282.80
  6. Step 6: Final answer
    x = 538,007.09

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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.