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Finding the Fourth Proportional to 430,626.80, 644,773.80 and 337,314.80

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Solution

The fourth proportional to 430,626.80, 644,773.80 and 337,314.80 is: 505,058.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,626.80 : 644,773.80 = 337,314.80 : x
  2. Step 2: Convert to fraction form
    430,626.80/644,773.80 = 337,314.80/x
  3. Step 3: Cross multiply
    430,626.80x = 644,773.80 × 337,314.80
  4. Step 4: Simplify right side
    430,626.80x = 217,491,745,392.24
  5. Step 5: Solve for x
    x = 217,491,745,392.24/430,626.80
  6. Step 6: Final answer
    x = 505,058.55

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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.