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Finding the Fourth Proportional to 337,246.70, 505,870.05 and 311,585.90

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Solution

The fourth proportional to 337,246.70, 505,870.05 and 311,585.90 is: 467,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,246.70 : 505,870.05 = 311,585.90 : x
  2. Step 2: Convert to fraction form
    337,246.70/505,870.05 = 311,585.90/x
  3. Step 3: Cross multiply
    337,246.70x = 505,870.05 × 311,585.90
  4. Step 4: Simplify right side
    337,246.70x = 157,621,974,812.30
  5. Step 5: Solve for x
    x = 157,621,974,812.30/337,246.70
  6. Step 6: Final answer
    x = 467,378.85

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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.