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Finding the Fourth Proportional to 425,627.40, 587,392.26 and 234,640.44

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Solution

The fourth proportional to 425,627.40, 587,392.26 and 234,640.44 is: 323,818.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,627.40 : 587,392.26 = 234,640.44 : x
  2. Step 2: Convert to fraction form
    425,627.40/587,392.26 = 234,640.44/x
  3. Step 3: Cross multiply
    425,627.40x = 587,392.26 × 234,640.44
  4. Step 4: Simplify right side
    425,627.40x = 137,825,978,338.99
  5. Step 5: Solve for x
    x = 137,825,978,338.99/425,627.40
  6. Step 6: Final answer
    x = 323,818.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.