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Finding the Fourth Proportional to 532,187.80, 734,091.17 and 379,275.49

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Solution

The fourth proportional to 532,187.80, 734,091.17 and 379,275.49 is: 523,166.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,187.80 : 734,091.17 = 379,275.49 : x
  2. Step 2: Convert to fraction form
    532,187.80/734,091.17 = 379,275.49/x
  3. Step 3: Cross multiply
    532,187.80x = 734,091.17 × 379,275.49
  4. Step 4: Simplify right side
    532,187.80x = 278,422,788,206.42
  5. Step 5: Solve for x
    x = 278,422,788,206.42/532,187.80
  6. Step 6: Final answer
    x = 523,166.42

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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.