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Finding the Fourth Proportional to 558,613.06, 770,751.65 and 329,179.74

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Solution

The fourth proportional to 558,613.06, 770,751.65 and 329,179.74 is: 454,188.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,613.06 : 770,751.65 = 329,179.74 : x
  2. Step 2: Convert to fraction form
    558,613.06/770,751.65 = 329,179.74/x
  3. Step 3: Cross multiply
    558,613.06x = 770,751.65 × 329,179.74
  4. Step 4: Simplify right side
    558,613.06x = 253,715,827,751.57
  5. Step 5: Solve for x
    x = 253,715,827,751.57/558,613.06
  6. Step 6: Final answer
    x = 454,188.86

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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.