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Finding the Fourth Proportional to 425,674.16, 638,926.77 and 351,549.44

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Solution

The fourth proportional to 425,674.16, 638,926.77 and 351,549.44 is: 527,667.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,674.16 : 638,926.77 = 351,549.44 : x
  2. Step 2: Convert to fraction form
    425,674.16/638,926.77 = 351,549.44/x
  3. Step 3: Cross multiply
    425,674.16x = 638,926.77 × 351,549.44
  4. Step 4: Simplify right side
    425,674.16x = 224,614,344,999.88
  5. Step 5: Solve for x
    x = 224,614,344,999.88/425,674.16
  6. Step 6: Final answer
    x = 527,667.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.