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Finding the Fourth Proportional to 324,513.67, 486,816.63 and 99,892.82

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Solution

The fourth proportional to 324,513.67, 486,816.63 and 99,892.82 is: 149,853.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,513.67 : 486,816.63 = 99,892.82 : x
  2. Step 2: Convert to fraction form
    324,513.67/486,816.63 = 99,892.82/x
  3. Step 3: Cross multiply
    324,513.67x = 486,816.63 × 99,892.82
  4. Step 4: Simplify right side
    324,513.67x = 48,629,486,028.77
  5. Step 5: Solve for x
    x = 48,629,486,028.77/324,513.67
  6. Step 6: Final answer
    x = 149,853.43

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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.