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Finding the Fourth Proportional to 443,317.40, 664,781.70 and 176,989.40

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Solution

The fourth proportional to 443,317.40, 664,781.70 and 176,989.40 is: 265,406.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,317.40 : 664,781.70 = 176,989.40 : x
  2. Step 2: Convert to fraction form
    443,317.40/664,781.70 = 176,989.40/x
  3. Step 3: Cross multiply
    443,317.40x = 664,781.70 × 176,989.40
  4. Step 4: Simplify right side
    443,317.40x = 117,659,314,213.98
  5. Step 5: Solve for x
    x = 117,659,314,213.98/443,317.40
  6. Step 6: Final answer
    x = 265,406.49

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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.