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Finding the Fourth Proportional to 448,708.40, 673,062.60 and 322,737.20

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Solution

The fourth proportional to 448,708.40, 673,062.60 and 322,737.20 is: 484,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,708.40 : 673,062.60 = 322,737.20 : x
  2. Step 2: Convert to fraction form
    448,708.40/673,062.60 = 322,737.20/x
  3. Step 3: Cross multiply
    448,708.40x = 673,062.60 × 322,737.20
  4. Step 4: Simplify right side
    448,708.40x = 217,222,338,948.72
  5. Step 5: Solve for x
    x = 217,222,338,948.72/448,708.40
  6. Step 6: Final answer
    x = 484,105.80

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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.