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Finding the Fourth Proportional to 572,134.89, 857,155.77 and 267,970.59

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Solution

The fourth proportional to 572,134.89, 857,155.77 and 267,970.59 is: 401,465.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,134.89 : 857,155.77 = 267,970.59 : x
  2. Step 2: Convert to fraction form
    572,134.89/857,155.77 = 267,970.59/x
  3. Step 3: Cross multiply
    572,134.89x = 857,155.77 × 267,970.59
  4. Step 4: Simplify right side
    572,134.89x = 229,692,537,408.80
  5. Step 5: Solve for x
    x = 229,692,537,408.80/572,134.89
  6. Step 6: Final answer
    x = 401,465.71

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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.