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Finding the Fourth Proportional to 321,856.71, 444,059.51 and 185,872.70

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Solution

The fourth proportional to 321,856.71, 444,059.51 and 185,872.70 is: 256,444.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,856.71 : 444,059.51 = 185,872.70 : x
  2. Step 2: Convert to fraction form
    321,856.71/444,059.51 = 185,872.70/x
  3. Step 3: Cross multiply
    321,856.71x = 444,059.51 × 185,872.70
  4. Step 4: Simplify right side
    321,856.71x = 82,538,536,934.72
  5. Step 5: Solve for x
    x = 82,538,536,934.72/321,856.71
  6. Step 6: Final answer
    x = 256,444.98

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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.