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Finding the Fourth Proportional to 553,694.35, 830,610.77 and 216,691.46

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Solution

The fourth proportional to 553,694.35, 830,610.77 and 216,691.46 is: 325,064.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,694.35 : 830,610.77 = 216,691.46 : x
  2. Step 2: Convert to fraction form
    553,694.35/830,610.77 = 216,691.46/x
  3. Step 3: Cross multiply
    553,694.35x = 830,610.77 × 216,691.46
  4. Step 4: Simplify right side
    553,694.35x = 179,986,260,443.02
  5. Step 5: Solve for x
    x = 179,986,260,443.02/553,694.35
  6. Step 6: Final answer
    x = 325,064.29

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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.