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Finding the Fourth Proportional to 318,460.88, 439,486.60 and 175,231.44

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Solution

The fourth proportional to 318,460.88, 439,486.60 and 175,231.44 is: 241,825.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,460.88 : 439,486.60 = 175,231.44 : x
  2. Step 2: Convert to fraction form
    318,460.88/439,486.60 = 175,231.44/x
  3. Step 3: Cross multiply
    318,460.88x = 439,486.60 × 175,231.44
  4. Step 4: Simplify right side
    318,460.88x = 77,011,869,778.70
  5. Step 5: Solve for x
    x = 77,011,869,778.70/318,460.88
  6. Step 6: Final answer
    x = 241,825.21

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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.