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Finding the Fourth Proportional to 439,876.88, 607,033.34 and 238,672.88

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Solution

The fourth proportional to 439,876.88, 607,033.34 and 238,672.88 is: 329,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,876.88 : 607,033.34 = 238,672.88 : x
  2. Step 2: Convert to fraction form
    439,876.88/607,033.34 = 238,672.88/x
  3. Step 3: Cross multiply
    439,876.88x = 607,033.34 × 238,672.88
  4. Step 4: Simplify right side
    439,876.88x = 144,882,391,285.29
  5. Step 5: Solve for x
    x = 144,882,391,285.29/439,876.88
  6. Step 6: Final answer
    x = 329,370.33

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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.