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Finding the Fourth Proportional to 313,787.61, 467,359.61 and 312,258.33

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Solution

The fourth proportional to 313,787.61, 467,359.61 and 312,258.33 is: 465,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,787.61 : 467,359.61 = 312,258.33 : x
  2. Step 2: Convert to fraction form
    313,787.61/467,359.61 = 312,258.33/x
  3. Step 3: Cross multiply
    313,787.61x = 467,359.61 × 312,258.33
  4. Step 4: Simplify right side
    313,787.61x = 145,936,932,108.70
  5. Step 5: Solve for x
    x = 145,936,932,108.70/313,787.61
  6. Step 6: Final answer
    x = 465,081.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.