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Finding the Fourth Proportional to 448,446.39, 618,856.02 and 247,242.39

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Solution

The fourth proportional to 448,446.39, 618,856.02 and 247,242.39 is: 341,194.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,446.39 : 618,856.02 = 247,242.39 : x
  2. Step 2: Convert to fraction form
    448,446.39/618,856.02 = 247,242.39/x
  3. Step 3: Cross multiply
    448,446.39x = 618,856.02 × 247,242.39
  4. Step 4: Simplify right side
    448,446.39x = 153,007,441,450.69
  5. Step 5: Solve for x
    x = 153,007,441,450.69/448,446.39
  6. Step 6: Final answer
    x = 341,194.50

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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.