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Finding the Fourth Proportional to 484,995.73, 669,294.32 and 281,164.83

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Solution

The fourth proportional to 484,995.73, 669,294.32 and 281,164.83 is: 388,007.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,995.73 : 669,294.32 = 281,164.83 : x
  2. Step 2: Convert to fraction form
    484,995.73/669,294.32 = 281,164.83/x
  3. Step 3: Cross multiply
    484,995.73x = 669,294.32 × 281,164.83
  4. Step 4: Simplify right side
    484,995.73x = 188,182,023,702.77
  5. Step 5: Solve for x
    x = 188,182,023,702.77/484,995.73
  6. Step 6: Final answer
    x = 388,007.59

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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.