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Finding the Fourth Proportional to 532,178.68, 798,501.87 and 279,400.44

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Solution

The fourth proportional to 532,178.68, 798,501.87 and 279,400.44 is: 419,223.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,178.68 : 798,501.87 = 279,400.44 : x
  2. Step 2: Convert to fraction form
    532,178.68/798,501.87 = 279,400.44/x
  3. Step 3: Cross multiply
    532,178.68x = 798,501.87 × 279,400.44
  4. Step 4: Simplify right side
    532,178.68x = 223,101,773,107.45
  5. Step 5: Solve for x
    x = 223,101,773,107.45/532,178.68
  6. Step 6: Final answer
    x = 419,223.43

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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.