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Finding the Fourth Proportional to 324,086.40, 447,239.12 and 180,847.32

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Solution

The fourth proportional to 324,086.40, 447,239.12 and 180,847.32 is: 249,569.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,086.40 : 447,239.12 = 180,847.32 : x
  2. Step 2: Convert to fraction form
    324,086.40/447,239.12 = 180,847.32/x
  3. Step 3: Cross multiply
    324,086.40x = 447,239.12 × 180,847.32
  4. Step 4: Simplify right side
    324,086.40x = 80,881,996,251.16
  5. Step 5: Solve for x
    x = 80,881,996,251.16/324,086.40
  6. Step 6: Final answer
    x = 249,569.24

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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.