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Finding the Fourth Proportional to 458,603.24, 687,652.28 and 245,620.76

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Solution

The fourth proportional to 458,603.24, 687,652.28 and 245,620.76 is: 368,295.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,603.24 : 687,652.28 = 245,620.76 : x
  2. Step 2: Convert to fraction form
    458,603.24/687,652.28 = 245,620.76/x
  3. Step 3: Cross multiply
    458,603.24x = 687,652.28 × 245,620.76
  4. Step 4: Simplify right side
    458,603.24x = 168,901,675,629.33
  5. Step 5: Solve for x
    x = 168,901,675,629.33/458,603.24
  6. Step 6: Final answer
    x = 368,295.86

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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.