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Finding the Fourth Proportional to 425,660.67, 587,399.65 and 234,674.21

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Solution

The fourth proportional to 425,660.67, 587,399.65 and 234,674.21 is: 323,843.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,660.67 : 587,399.65 = 234,674.21 : x
  2. Step 2: Convert to fraction form
    425,660.67/587,399.65 = 234,674.21/x
  3. Step 3: Cross multiply
    425,660.67x = 587,399.65 × 234,674.21
  4. Step 4: Simplify right side
    425,660.67x = 137,847,549,699.84
  5. Step 5: Solve for x
    x = 137,847,549,699.84/425,660.67
  6. Step 6: Final answer
    x = 323,843.75

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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.