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Finding the Fourth Proportional to 443,462.10, 665,193.15 and 194,630.10

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Solution

The fourth proportional to 443,462.10, 665,193.15 and 194,630.10 is: 291,945.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,462.10 : 665,193.15 = 194,630.10 : x
  2. Step 2: Convert to fraction form
    443,462.10/665,193.15 = 194,630.10/x
  3. Step 3: Cross multiply
    443,462.10x = 665,193.15 × 194,630.10
  4. Step 4: Simplify right side
    443,462.10x = 129,466,609,303.82
  5. Step 5: Solve for x
    x = 129,466,609,303.82/443,462.10
  6. Step 6: Final answer
    x = 291,945.15

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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.