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Finding the Fourth Proportional to 385,546.91, 532,113.50 and 240,376.25

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Solution

The fourth proportional to 385,546.91, 532,113.50 and 240,376.25 is: 331,755.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,546.91 : 532,113.50 = 240,376.25 : x
  2. Step 2: Convert to fraction form
    385,546.91/532,113.50 = 240,376.25/x
  3. Step 3: Cross multiply
    385,546.91x = 532,113.50 × 240,376.25
  4. Step 4: Simplify right side
    385,546.91x = 127,907,445,894.18
  5. Step 5: Solve for x
    x = 127,907,445,894.18/385,546.91
  6. Step 6: Final answer
    x = 331,755.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.