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Finding the Fourth Proportional to 313,558.20, 469,559.70 and 251,350.20

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Solution

The fourth proportional to 313,558.20, 469,559.70 and 251,350.20 is: 376,401.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,558.20 : 469,559.70 = 251,350.20 : x
  2. Step 2: Convert to fraction form
    313,558.20/469,559.70 = 251,350.20/x
  3. Step 3: Cross multiply
    313,558.20x = 469,559.70 × 251,350.20
  4. Step 4: Simplify right side
    313,558.20x = 118,023,924,506.94
  5. Step 5: Solve for x
    x = 118,023,924,506.94/313,558.20
  6. Step 6: Final answer
    x = 376,401.97

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1.5x scale

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.