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Finding the Fourth Proportional to 424,680.44, 637,086.22 and 154,831.32

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Solution

The fourth proportional to 424,680.44, 637,086.22 and 154,831.32 is: 232,270.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,680.44 : 637,086.22 = 154,831.32 : x
  2. Step 2: Convert to fraction form
    424,680.44/637,086.22 = 154,831.32/x
  3. Step 3: Cross multiply
    424,680.44x = 637,086.22 × 154,831.32
  4. Step 4: Simplify right side
    424,680.44x = 98,640,900,396.41
  5. Step 5: Solve for x
    x = 98,640,900,396.41/424,680.44
  6. Step 6: Final answer
    x = 232,270.88

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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.