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Finding the Fourth Proportional to 426,408.64, 588,440.16 and 235,417.96

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Solution

The fourth proportional to 426,408.64, 588,440.16 and 235,417.96 is: 324,874.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,408.64 : 588,440.16 = 235,417.96 : x
  2. Step 2: Convert to fraction form
    426,408.64/588,440.16 = 235,417.96/x
  3. Step 3: Cross multiply
    426,408.64x = 588,440.16 × 235,417.96
  4. Step 4: Simplify right side
    426,408.64x = 138,529,382,049.27
  5. Step 5: Solve for x
    x = 138,529,382,049.27/426,408.64
  6. Step 6: Final answer
    x = 324,874.71

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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.