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Finding the Fourth Proportional to 662,591.69, 914,351.61 and 404,899.53

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Solution

The fourth proportional to 662,591.69, 914,351.61 and 404,899.53 is: 558,746.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,591.69 : 914,351.61 = 404,899.53 : x
  2. Step 2: Convert to fraction form
    662,591.69/914,351.61 = 404,899.53/x
  3. Step 3: Cross multiply
    662,591.69x = 914,351.61 × 404,899.53
  4. Step 4: Simplify right side
    662,591.69x = 370,220,537,143.74
  5. Step 5: Solve for x
    x = 370,220,537,143.74/662,591.69
  6. Step 6: Final answer
    x = 558,746.13

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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.