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Finding the Fourth Proportional to 435,332.34, 651,309.03 and 381,620.31

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Solution

The fourth proportional to 435,332.34, 651,309.03 and 381,620.31 is: 570,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,332.34 : 651,309.03 = 381,620.31 : x
  2. Step 2: Convert to fraction form
    435,332.34/651,309.03 = 381,620.31/x
  3. Step 3: Cross multiply
    435,332.34x = 651,309.03 × 381,620.31
  4. Step 4: Simplify right side
    435,332.34x = 248,552,753,934.40
  5. Step 5: Solve for x
    x = 248,552,753,934.40/435,332.34
  6. Step 6: Final answer
    x = 570,949.44

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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.