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Finding the Fourth Proportional to 443,330.60, 664,995.90 and 177,132.20

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Solution

The fourth proportional to 443,330.60, 664,995.90 and 177,132.20 is: 265,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,330.60 : 664,995.90 = 177,132.20 : x
  2. Step 2: Convert to fraction form
    443,330.60/664,995.90 = 177,132.20/x
  3. Step 3: Cross multiply
    443,330.60x = 664,995.90 × 177,132.20
  4. Step 4: Simplify right side
    443,330.60x = 117,792,186,757.98
  5. Step 5: Solve for x
    x = 117,792,186,757.98/443,330.60
  6. Step 6: Final answer
    x = 265,698.30

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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.