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Finding the Fourth Proportional to 438,490.24, 657,661.24 and 122,874.54

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Solution

The fourth proportional to 438,490.24, 657,661.24 and 122,874.54 is: 184,291.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,490.24 : 657,661.24 = 122,874.54 : x
  2. Step 2: Convert to fraction form
    438,490.24/657,661.24 = 122,874.54/x
  3. Step 3: Cross multiply
    438,490.24x = 657,661.24 × 122,874.54
  4. Step 4: Simplify right side
    438,490.24x = 80,809,822,340.83
  5. Step 5: Solve for x
    x = 80,809,822,340.83/438,490.24
  6. Step 6: Final answer
    x = 184,291.04

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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.