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Finding the Fourth Proportional to 425,745.20, 587,529.60 and 234,754.40

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Solution

The fourth proportional to 425,745.20, 587,529.60 and 234,754.40 is: 323,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,745.20 : 587,529.60 = 234,754.40 : x
  2. Step 2: Convert to fraction form
    425,745.20/587,529.60 = 234,754.40/x
  3. Step 3: Cross multiply
    425,745.20x = 587,529.60 × 234,754.40
  4. Step 4: Simplify right side
    425,745.20x = 137,925,158,730.24
  5. Step 5: Solve for x
    x = 137,925,158,730.24/425,745.20
  6. Step 6: Final answer
    x = 323,961.75

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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.