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Finding the Fourth Proportional to 443,513.40, 665,270.10 and 162,994.20

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Solution

The fourth proportional to 443,513.40, 665,270.10 and 162,994.20 is: 244,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,513.40 : 665,270.10 = 162,994.20 : x
  2. Step 2: Convert to fraction form
    443,513.40/665,270.10 = 162,994.20/x
  3. Step 3: Cross multiply
    443,513.40x = 665,270.10 × 162,994.20
  4. Step 4: Simplify right side
    443,513.40x = 108,435,167,733.42
  5. Step 5: Solve for x
    x = 108,435,167,733.42/443,513.40
  6. Step 6: Final answer
    x = 244,491.30

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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.