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Finding the Fourth Proportional to 401,421.20, 600,950.75 and 267,970.46

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Solution

The fourth proportional to 401,421.20, 600,950.75 and 267,970.46 is: 401,167.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,421.20 : 600,950.75 = 267,970.46 : x
  2. Step 2: Convert to fraction form
    401,421.20/600,950.75 = 267,970.46/x
  3. Step 3: Cross multiply
    401,421.20x = 600,950.75 × 267,970.46
  4. Step 4: Simplify right side
    401,421.20x = 161,037,044,570.24
  5. Step 5: Solve for x
    x = 161,037,044,570.24/401,421.20
  6. Step 6: Final answer
    x = 401,167.27

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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.