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Finding the Fourth Proportional to 558,765.62, 771,112.93 and 304,133.30

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Solution

The fourth proportional to 558,765.62, 771,112.93 and 304,133.30 is: 419,712.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,765.62 : 771,112.93 = 304,133.30 : x
  2. Step 2: Convert to fraction form
    558,765.62/771,112.93 = 304,133.30/x
  3. Step 3: Cross multiply
    558,765.62x = 771,112.93 × 304,133.30
  4. Step 4: Simplify right side
    558,765.62x = 234,521,120,073.57
  5. Step 5: Solve for x
    x = 234,521,120,073.57/558,765.62
  6. Step 6: Final answer
    x = 419,712.87

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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.