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Finding the Fourth Proportional to 436,591.92, 654,888.06 and 196,425.39

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Solution

The fourth proportional to 436,591.92, 654,888.06 and 196,425.39 is: 294,638.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,591.92 : 654,888.06 = 196,425.39 : x
  2. Step 2: Convert to fraction form
    436,591.92/654,888.06 = 196,425.39/x
  3. Step 3: Cross multiply
    436,591.92x = 654,888.06 × 196,425.39
  4. Step 4: Simplify right side
    436,591.92x = 128,636,642,591.84
  5. Step 5: Solve for x
    x = 128,636,642,591.84/436,591.92
  6. Step 6: Final answer
    x = 294,638.17

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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.