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Finding the Fourth Proportional to 443,116.60, 664,674.90 and 176,918.20

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Solution

The fourth proportional to 443,116.60, 664,674.90 and 176,918.20 is: 265,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,116.60 : 664,674.90 = 176,918.20 : x
  2. Step 2: Convert to fraction form
    443,116.60/664,674.90 = 176,918.20/x
  3. Step 3: Cross multiply
    443,116.60x = 664,674.90 × 176,918.20
  4. Step 4: Simplify right side
    443,116.60x = 117,593,086,893.18
  5. Step 5: Solve for x
    x = 117,593,086,893.18/443,116.60
  6. Step 6: Final answer
    x = 265,377.30

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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.