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Finding the Fourth Proportional to 662,906.13, 914,810.48 and 361,100.13

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Solution

The fourth proportional to 662,906.13, 914,810.48 and 361,100.13 is: 498,318.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,906.13 : 914,810.48 = 361,100.13 : x
  2. Step 2: Convert to fraction form
    662,906.13/914,810.48 = 361,100.13/x
  3. Step 3: Cross multiply
    662,906.13x = 914,810.48 × 361,100.13
  4. Step 4: Simplify right side
    662,906.13x = 330,338,183,253.36
  5. Step 5: Solve for x
    x = 330,338,183,253.36/662,906.13
  6. Step 6: Final answer
    x = 498,318.19

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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.