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Finding the Fourth Proportional to 351,231.40, 527,019.90 and 266,962.60

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Solution

The fourth proportional to 351,231.40, 527,019.90 and 266,962.60 is: 400,575.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,231.40 : 527,019.90 = 266,962.60 : x
  2. Step 2: Convert to fraction form
    351,231.40/527,019.90 = 266,962.60/x
  3. Step 3: Cross multiply
    351,231.40x = 527,019.90 × 266,962.60
  4. Step 4: Simplify right side
    351,231.40x = 140,694,602,755.74
  5. Step 5: Solve for x
    x = 140,694,602,755.74/351,231.40
  6. Step 6: Final answer
    x = 400,575.24

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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.