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Finding the Fourth Proportional to 277,876.60, 383,258.11 and 239,180.28

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Solution

The fourth proportional to 277,876.60, 383,258.11 and 239,180.28 is: 329,886.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,876.60 : 383,258.11 = 239,180.28 : x
  2. Step 2: Convert to fraction form
    277,876.60/383,258.11 = 239,180.28/x
  3. Step 3: Cross multiply
    277,876.60x = 383,258.11 × 239,180.28
  4. Step 4: Simplify right side
    277,876.60x = 91,667,782,062.07
  5. Step 5: Solve for x
    x = 91,667,782,062.07/277,876.60
  6. Step 6: Final answer
    x = 329,886.65

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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.