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Finding the Fourth Proportional to 558,295.61, 770,200.85 and 343,308.65

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Solution

The fourth proportional to 558,295.61, 770,200.85 and 343,308.65 is: 473,613.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,295.61 : 770,200.85 = 343,308.65 : x
  2. Step 2: Convert to fraction form
    558,295.61/770,200.85 = 343,308.65/x
  3. Step 3: Cross multiply
    558,295.61x = 770,200.85 × 343,308.65
  4. Step 4: Simplify right side
    558,295.61x = 264,416,611,049.62
  5. Step 5: Solve for x
    x = 264,416,611,049.62/558,295.61
  6. Step 6: Final answer
    x = 473,613.99

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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.