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Finding the Fourth Proportional to 709,894.98, 980,691.44 and 614,235.60

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Solution

The fourth proportional to 709,894.98, 980,691.44 and 614,235.60 is: 848,541.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,894.98 : 980,691.44 = 614,235.60 : x
  2. Step 2: Convert to fraction form
    709,894.98/980,691.44 = 614,235.60/x
  3. Step 3: Cross multiply
    709,894.98x = 980,691.44 × 614,235.60
  4. Step 4: Simplify right side
    709,894.98x = 602,375,591,992.09
  5. Step 5: Solve for x
    x = 602,375,591,992.09/709,894.98
  6. Step 6: Final answer
    x = 848,541.84

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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.