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Finding the Fourth Proportional to 307,816.20, 461,724.30 and 295,374.60

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Solution

The fourth proportional to 307,816.20, 461,724.30 and 295,374.60 is: 443,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,816.20 : 461,724.30 = 295,374.60 : x
  2. Step 2: Convert to fraction form
    307,816.20/461,724.30 = 295,374.60/x
  3. Step 3: Cross multiply
    307,816.20x = 461,724.30 × 295,374.60
  4. Step 4: Simplify right side
    307,816.20x = 136,381,630,422.78
  5. Step 5: Solve for x
    x = 136,381,630,422.78/307,816.20
  6. Step 6: Final answer
    x = 443,061.90

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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.