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Finding the Fourth Proportional to 523,251.90, 783,711.45 and 404,279.10

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Solution

The fourth proportional to 523,251.90, 783,711.45 and 404,279.10 is: 605,517.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,251.90 : 783,711.45 = 404,279.10 : x
  2. Step 2: Convert to fraction form
    523,251.90/783,711.45 = 404,279.10/x
  3. Step 3: Cross multiply
    523,251.90x = 783,711.45 × 404,279.10
  4. Step 4: Simplify right side
    523,251.90x = 316,838,159,665.70
  5. Step 5: Solve for x
    x = 316,838,159,665.70/523,251.90
  6. Step 6: Final answer
    x = 605,517.46

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1.5x scale

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.