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Finding the Fourth Proportional to 619,514.84, 929,272.32 and 220,171.39

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Solution

The fourth proportional to 619,514.84, 929,272.32 and 220,171.39 is: 330,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,514.84 : 929,272.32 = 220,171.39 : x
  2. Step 2: Convert to fraction form
    619,514.84/929,272.32 = 220,171.39/x
  3. Step 3: Cross multiply
    619,514.84x = 929,272.32 × 220,171.39
  4. Step 4: Simplify right side
    619,514.84x = 204,599,176,059.74
  5. Step 5: Solve for x
    x = 204,599,176,059.74/619,514.84
  6. Step 6: Final answer
    x = 330,257.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.