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Finding the Fourth Proportional to 558,488.12, 770,718.85 and 332,089.88

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Solution

The fourth proportional to 558,488.12, 770,718.85 and 332,089.88 is: 458,287.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,488.12 : 770,718.85 = 332,089.88 : x
  2. Step 2: Convert to fraction form
    558,488.12/770,718.85 = 332,089.88/x
  3. Step 3: Cross multiply
    558,488.12x = 770,718.85 × 332,089.88
  4. Step 4: Simplify right side
    558,488.12x = 255,947,925,726.42
  5. Step 5: Solve for x
    x = 255,947,925,726.42/558,488.12
  6. Step 6: Final answer
    x = 458,287.15

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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.