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Finding the Fourth Proportional to 318,236.16, 439,167.45 and 175,005.48

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Solution

The fourth proportional to 318,236.16, 439,167.45 and 175,005.48 is: 241,508.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,236.16 : 439,167.45 = 175,005.48 : x
  2. Step 2: Convert to fraction form
    318,236.16/439,167.45 = 175,005.48/x
  3. Step 3: Cross multiply
    318,236.16x = 439,167.45 × 175,005.48
  4. Step 4: Simplify right side
    318,236.16x = 76,856,710,387.63
  5. Step 5: Solve for x
    x = 76,856,710,387.63/318,236.16
  6. Step 6: Final answer
    x = 241,508.41

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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.