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Finding the Fourth Proportional to 324,715.80, 448,112.88 and 181,485.12

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Solution

The fourth proportional to 324,715.80, 448,112.88 and 181,485.12 is: 250,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,715.80 : 448,112.88 = 181,485.12 : x
  2. Step 2: Convert to fraction form
    324,715.80/448,112.88 = 181,485.12/x
  3. Step 3: Cross multiply
    324,715.80x = 448,112.88 × 181,485.12
  4. Step 4: Simplify right side
    324,715.80x = 81,325,819,800.35
  5. Step 5: Solve for x
    x = 81,325,819,800.35/324,715.80
  6. Step 6: Final answer
    x = 250,452.30

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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.