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Finding the Fourth Proportional to 318,282.69, 439,220.25 and 175,028.79

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Solution

The fourth proportional to 318,282.69, 439,220.25 and 175,028.79 is: 241,534.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,282.69 : 439,220.25 = 175,028.79 : x
  2. Step 2: Convert to fraction form
    318,282.69/439,220.25 = 175,028.79/x
  3. Step 3: Cross multiply
    318,282.69x = 439,220.25 × 175,028.79
  4. Step 4: Simplify right side
    318,282.69x = 76,876,188,901.00
  5. Step 5: Solve for x
    x = 76,876,188,901.00/318,282.69
  6. Step 6: Final answer
    x = 241,534.31

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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.