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Finding the Fourth Proportional to 318,228.84, 439,167.10 and 174,999.78

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Solution

The fourth proportional to 318,228.84, 439,167.10 and 174,999.78 is: 241,505.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,228.84 : 439,167.10 = 174,999.78 : x
  2. Step 2: Convert to fraction form
    318,228.84/439,167.10 = 174,999.78/x
  3. Step 3: Cross multiply
    318,228.84x = 439,167.10 × 174,999.78
  4. Step 4: Simplify right side
    318,228.84x = 76,854,145,883.24
  5. Step 5: Solve for x
    x = 76,854,145,883.24/318,228.84
  6. Step 6: Final answer
    x = 241,505.91

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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.