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Finding the Fourth Proportional to 366,956.60, 550,434.90 and 340,384.55

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Solution

The fourth proportional to 366,956.60, 550,434.90 and 340,384.55 is: 510,576.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,956.60 : 550,434.90 = 340,384.55 : x
  2. Step 2: Convert to fraction form
    366,956.60/550,434.90 = 340,384.55/x
  3. Step 3: Cross multiply
    366,956.60x = 550,434.90 × 340,384.55
  4. Step 4: Simplify right side
    366,956.60x = 187,359,535,740.80
  5. Step 5: Solve for x
    x = 187,359,535,740.80/366,956.60
  6. Step 6: Final answer
    x = 510,576.83

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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.