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Finding the Fourth Proportional to 520,604.21, 781,091.27 and 232,389.73

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Solution

The fourth proportional to 520,604.21, 781,091.27 and 232,389.73 is: 348,667.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,604.21 : 781,091.27 = 232,389.73 : x
  2. Step 2: Convert to fraction form
    520,604.21/781,091.27 = 232,389.73/x
  3. Step 3: Cross multiply
    520,604.21x = 781,091.27 × 232,389.73
  4. Step 4: Simplify right side
    520,604.21x = 181,517,592,213.13
  5. Step 5: Solve for x
    x = 181,517,592,213.13/520,604.21
  6. Step 6: Final answer
    x = 348,667.16

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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.