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Finding the Fourth Proportional to 382,066.60, 572,443.80 and 248,878.30

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Solution

The fourth proportional to 382,066.60, 572,443.80 and 248,878.30 is: 372,890.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,066.60 : 572,443.80 = 248,878.30 : x
  2. Step 2: Convert to fraction form
    382,066.60/572,443.80 = 248,878.30/x
  3. Step 3: Cross multiply
    382,066.60x = 572,443.80 × 248,878.30
  4. Step 4: Simplify right side
    382,066.60x = 142,468,839,789.54
  5. Step 5: Solve for x
    x = 142,468,839,789.54/382,066.60
  6. Step 6: Final answer
    x = 372,890.07

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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.