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Finding the Fourth Proportional to 666,172.54, 999,266.10 and 532,882.18

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Solution

The fourth proportional to 666,172.54, 999,266.10 and 532,882.18 is: 799,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,172.54 : 999,266.10 = 532,882.18 : x
  2. Step 2: Convert to fraction form
    666,172.54/999,266.10 = 532,882.18/x
  3. Step 3: Cross multiply
    666,172.54x = 999,266.10 × 532,882.18
  4. Step 4: Simplify right side
    666,172.54x = 532,491,097,768.10
  5. Step 5: Solve for x
    x = 532,491,097,768.10/666,172.54
  6. Step 6: Final answer
    x = 799,329.10

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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.