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Finding the Fourth Proportional to 425,416.45, 587,078.57 and 234,436.69

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Solution

The fourth proportional to 425,416.45, 587,078.57 and 234,436.69 is: 323,524.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,416.45 : 587,078.57 = 234,436.69 : x
  2. Step 2: Convert to fraction form
    425,416.45/587,078.57 = 234,436.69/x
  3. Step 3: Cross multiply
    425,416.45x = 587,078.57 × 234,436.69
  4. Step 4: Simplify right side
    425,416.45x = 137,632,754,371.43
  5. Step 5: Solve for x
    x = 137,632,754,371.43/425,416.45
  6. Step 6: Final answer
    x = 323,524.76

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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.