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Finding the Fourth Proportional to 662,251.06, 913,926 and 469,004.50

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Solution

The fourth proportional to 662,251.06, 913,926 and 469,004.50 is: 647,240.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,251.06 : 913,926 = 469,004.50 : x
  2. Step 2: Convert to fraction form
    662,251.06/913,926 = 469,004.50/x
  3. Step 3: Cross multiply
    662,251.06x = 913,926 × 469,004.50
  4. Step 4: Simplify right side
    662,251.06x = 428,635,406,667
  5. Step 5: Solve for x
    x = 428,635,406,667/662,251.06
  6. Step 6: Final answer
    x = 647,240.05

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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.