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Finding the Fourth Proportional to 318,352.48, 477,534.24 and 107,995.84

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Solution

The fourth proportional to 318,352.48, 477,534.24 and 107,995.84 is: 161,995.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,352.48 : 477,534.24 = 107,995.84 : x
  2. Step 2: Convert to fraction form
    318,352.48/477,534.24 = 107,995.84/x
  3. Step 3: Cross multiply
    318,352.48x = 477,534.24 × 107,995.84
  4. Step 4: Simplify right side
    318,352.48x = 51,571,711,377.56
  5. Step 5: Solve for x
    x = 51,571,711,377.56/318,352.48
  6. Step 6: Final answer
    x = 161,995.63

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1.5x scale

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.