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Finding the Fourth Proportional to 482,758.72, 724,201.64 and 179,111.54

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Solution

The fourth proportional to 482,758.72, 724,201.64 and 179,111.54 is: 268,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,758.72 : 724,201.64 = 179,111.54 : x
  2. Step 2: Convert to fraction form
    482,758.72/724,201.64 = 179,111.54/x
  3. Step 3: Cross multiply
    482,758.72x = 724,201.64 × 179,111.54
  4. Step 4: Simplify right side
    482,758.72x = 129,712,871,010.93
  5. Step 5: Solve for x
    x = 129,712,871,010.93/482,758.72
  6. Step 6: Final answer
    x = 268,690.89

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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.