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Finding the Fourth Proportional to 482,803.88, 724,030.85 and 216,427.28

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Solution

The fourth proportional to 482,803.88, 724,030.85 and 216,427.28 is: 324,562.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,803.88 : 724,030.85 = 216,427.28 : x
  2. Step 2: Convert to fraction form
    482,803.88/724,030.85 = 216,427.28/x
  3. Step 3: Cross multiply
    482,803.88x = 724,030.85 × 216,427.28
  4. Step 4: Simplify right side
    482,803.88x = 156,700,024,422.50
  5. Step 5: Solve for x
    x = 156,700,024,422.50/482,803.88
  6. Step 6: Final answer
    x = 324,562.48

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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.