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Finding the Fourth Proportional to 418,790.79, 626,600.96 and 248,104.14

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Solution

The fourth proportional to 418,790.79, 626,600.96 and 248,104.14 is: 371,217.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,790.79 : 626,600.96 = 248,104.14 : x
  2. Step 2: Convert to fraction form
    418,790.79/626,600.96 = 248,104.14/x
  3. Step 3: Cross multiply
    418,790.79x = 626,600.96 × 248,104.14
  4. Step 4: Simplify right side
    418,790.79x = 155,462,291,063.45
  5. Step 5: Solve for x
    x = 155,462,291,063.45/418,790.79
  6. Step 6: Final answer
    x = 371,217.08

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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.