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Finding the Fourth Proportional to 324,018.33, 447,166.80 and 180,781.49

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Solution

The fourth proportional to 324,018.33, 447,166.80 and 180,781.49 is: 249,490.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,018.33 : 447,166.80 = 180,781.49 : x
  2. Step 2: Convert to fraction form
    324,018.33/447,166.80 = 180,781.49/x
  3. Step 3: Cross multiply
    324,018.33x = 447,166.80 × 180,781.49
  4. Step 4: Simplify right side
    324,018.33x = 80,839,478,146.70
  5. Step 5: Solve for x
    x = 80,839,478,146.70/324,018.33
  6. Step 6: Final answer
    x = 249,490.45

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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.