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Finding the Fourth Proportional to 443,354.10, 665,031.15 and 177,155.70

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Solution

The fourth proportional to 443,354.10, 665,031.15 and 177,155.70 is: 265,733.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,354.10 : 665,031.15 = 177,155.70 : x
  2. Step 2: Convert to fraction form
    443,354.10/665,031.15 = 177,155.70/x
  3. Step 3: Cross multiply
    443,354.10x = 665,031.15 × 177,155.70
  4. Step 4: Simplify right side
    443,354.10x = 117,814,058,900.06
  5. Step 5: Solve for x
    x = 117,814,058,900.06/443,354.10
  6. Step 6: Final answer
    x = 265,733.55

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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.