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Finding the Fourth Proportional to 662,903.92, 914,810.84 and 361,097.84

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Solution

The fourth proportional to 662,903.92, 914,810.84 and 361,097.84 is: 498,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,903.92 : 914,810.84 = 361,097.84 : x
  2. Step 2: Convert to fraction form
    662,903.92/914,810.84 = 361,097.84/x
  3. Step 3: Cross multiply
    662,903.92x = 914,810.84 × 361,097.84
  4. Step 4: Simplify right side
    662,903.92x = 330,336,218,332.59
  5. Step 5: Solve for x
    x = 330,336,218,332.59/662,903.92
  6. Step 6: Final answer
    x = 498,316.89

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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.