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Finding the Fourth Proportional to 662,755.69, 914,546.67 and 372,344.50

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Solution

The fourth proportional to 662,755.69, 914,546.67 and 372,344.50 is: 513,803.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,755.69 : 914,546.67 = 372,344.50 : x
  2. Step 2: Convert to fraction form
    662,755.69/914,546.67 = 372,344.50/x
  3. Step 3: Cross multiply
    662,755.69x = 914,546.67 × 372,344.50
  4. Step 4: Simplify right side
    662,755.69x = 340,526,420,312.04
  5. Step 5: Solve for x
    x = 340,526,420,312.04/662,755.69
  6. Step 6: Final answer
    x = 513,803.84

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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.