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Finding the Fourth Proportional to 609,626.80, 914,440.20 and 397,050.40

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Solution

The fourth proportional to 609,626.80, 914,440.20 and 397,050.40 is: 595,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,626.80 : 914,440.20 = 397,050.40 : x
  2. Step 2: Convert to fraction form
    609,626.80/914,440.20 = 397,050.40/x
  3. Step 3: Cross multiply
    609,626.80x = 914,440.20 × 397,050.40
  4. Step 4: Simplify right side
    609,626.80x = 363,078,847,186.08
  5. Step 5: Solve for x
    x = 363,078,847,186.08/609,626.80
  6. Step 6: Final answer
    x = 595,575.60

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Similar ratio
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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.