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Finding the Fourth Proportional to 353,463.60, 530,195.40 and 327,802.80

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Solution

The fourth proportional to 353,463.60, 530,195.40 and 327,802.80 is: 491,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,463.60 : 530,195.40 = 327,802.80 : x
  2. Step 2: Convert to fraction form
    353,463.60/530,195.40 = 327,802.80/x
  3. Step 3: Cross multiply
    353,463.60x = 530,195.40 × 327,802.80
  4. Step 4: Simplify right side
    353,463.60x = 173,799,536,667.12
  5. Step 5: Solve for x
    x = 173,799,536,667.12/353,463.60
  6. Step 6: Final answer
    x = 491,704.20

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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.