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Finding the Fourth Proportional to 409,808.20, 614,712.30 and 232,661.20

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Solution

The fourth proportional to 409,808.20, 614,712.30 and 232,661.20 is: 348,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,808.20 : 614,712.30 = 232,661.20 : x
  2. Step 2: Convert to fraction form
    409,808.20/614,712.30 = 232,661.20/x
  3. Step 3: Cross multiply
    409,808.20x = 614,712.30 × 232,661.20
  4. Step 4: Simplify right side
    409,808.20x = 143,019,701,372.76
  5. Step 5: Solve for x
    x = 143,019,701,372.76/409,808.20
  6. Step 6: Final answer
    x = 348,991.80

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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.