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Finding the Fourth Proportional to 295,478.10, 443,217.15 and 200,999.70

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Solution

The fourth proportional to 295,478.10, 443,217.15 and 200,999.70 is: 301,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,478.10 : 443,217.15 = 200,999.70 : x
  2. Step 2: Convert to fraction form
    295,478.10/443,217.15 = 200,999.70/x
  3. Step 3: Cross multiply
    295,478.10x = 443,217.15 × 200,999.70
  4. Step 4: Simplify right side
    295,478.10x = 89,086,514,184.86
  5. Step 5: Solve for x
    x = 89,086,514,184.86/295,478.10
  6. Step 6: Final answer
    x = 301,499.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.