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Finding the Fourth Proportional to 864,116.10, 1,192,361.04 and 482,068.80

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Solution

The fourth proportional to 864,116.10, 1,192,361.04 and 482,068.80 is: 665,188.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,116.10 : 1,192,361.04 = 482,068.80 : x
  2. Step 2: Convert to fraction form
    864,116.10/1,192,361.04 = 482,068.80/x
  3. Step 3: Cross multiply
    864,116.10x = 1,192,361.04 × 482,068.80
  4. Step 4: Simplify right side
    864,116.10x = 574,800,055,719.55
  5. Step 5: Solve for x
    x = 574,800,055,719.55/864,116.10
  6. Step 6: Final answer
    x = 665,188.46

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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.