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Finding the Fourth Proportional to 319,920.50, 441,490.29 and 185,793.14

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Solution

The fourth proportional to 319,920.50, 441,490.29 and 185,793.14 is: 256,394.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,920.50 : 441,490.29 = 185,793.14 : x
  2. Step 2: Convert to fraction form
    319,920.50/441,490.29 = 185,793.14/x
  3. Step 3: Cross multiply
    319,920.50x = 441,490.29 × 185,793.14
  4. Step 4: Simplify right side
    319,920.50x = 82,025,867,258.61
  5. Step 5: Solve for x
    x = 82,025,867,258.61/319,920.50
  6. Step 6: Final answer
    x = 256,394.53

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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.