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Finding the Fourth Proportional to 238,528.88, 328,831.06 and 189,702.73

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Solution

The fourth proportional to 238,528.88, 328,831.06 and 189,702.73 is: 261,520.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,528.88 : 328,831.06 = 189,702.73 : x
  2. Step 2: Convert to fraction form
    238,528.88/328,831.06 = 189,702.73/x
  3. Step 3: Cross multiply
    238,528.88x = 328,831.06 × 189,702.73
  4. Step 4: Simplify right side
    238,528.88x = 62,380,150,207.80
  5. Step 5: Solve for x
    x = 62,380,150,207.80/238,528.88
  6. Step 6: Final answer
    x = 261,520.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.