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Finding the Fourth Proportional to 864,005.12, 1,192,330.50 and 482,048

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Solution

The fourth proportional to 864,005.12, 1,192,330.50 and 482,048 is: 665,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,005.12 : 1,192,330.50 = 482,048 : x
  2. Step 2: Convert to fraction form
    864,005.12/1,192,330.50 = 482,048/x
  3. Step 3: Cross multiply
    864,005.12x = 1,192,330.50 × 482,048
  4. Step 4: Simplify right side
    864,005.12x = 574,760,532,864
  5. Step 5: Solve for x
    x = 574,760,532,864/864,005.12
  6. Step 6: Final answer
    x = 665,228.16

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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.