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Finding the Fourth Proportional to 338,778.63, 467,515.17 and 185,818.06

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Solution

The fourth proportional to 338,778.63, 467,515.17 and 185,818.06 is: 256,429.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,778.63 : 467,515.17 = 185,818.06 : x
  2. Step 2: Convert to fraction form
    338,778.63/467,515.17 = 185,818.06/x
  3. Step 3: Cross multiply
    338,778.63x = 467,515.17 × 185,818.06
  4. Step 4: Simplify right side
    338,778.63x = 86,872,761,909.97
  5. Step 5: Solve for x
    x = 86,872,761,909.97/338,778.63
  6. Step 6: Final answer
    x = 256,429.29

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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.