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Finding the Fourth Proportional to 404,618.68, 606,734.09 and 191,208.92

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Solution

The fourth proportional to 404,618.68, 606,734.09 and 191,208.92 is: 286,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,618.68 : 606,734.09 = 191,208.92 : x
  2. Step 2: Convert to fraction form
    404,618.68/606,734.09 = 191,208.92/x
  3. Step 3: Cross multiply
    404,618.68x = 606,734.09 × 191,208.92
  4. Step 4: Simplify right side
    404,618.68x = 116,012,969,120.04
  5. Step 5: Solve for x
    x = 116,012,969,120.04/404,618.68
  6. Step 6: Final answer
    x = 286,721.74

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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.