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Finding the Fourth Proportional to 443,831.70, 665,732.97 and 177,520.74

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Solution

The fourth proportional to 443,831.70, 665,732.97 and 177,520.74 is: 266,275.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,831.70 : 665,732.97 = 177,520.74 : x
  2. Step 2: Convert to fraction form
    443,831.70/665,732.97 = 177,520.74/x
  3. Step 3: Cross multiply
    443,831.70x = 665,732.97 × 177,520.74
  4. Step 4: Simplify right side
    443,831.70x = 118,181,409,476.80
  5. Step 5: Solve for x
    x = 118,181,409,476.80/443,831.70
  6. Step 6: Final answer
    x = 266,275.28

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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.