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Finding the Fourth Proportional to 574,656.86, 861,110.48 and 274,725.20

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Solution

The fourth proportional to 574,656.86, 861,110.48 and 274,725.20 is: 411,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,656.86 : 861,110.48 = 274,725.20 : x
  2. Step 2: Convert to fraction form
    574,656.86/861,110.48 = 274,725.20/x
  3. Step 3: Cross multiply
    574,656.86x = 861,110.48 × 274,725.20
  4. Step 4: Simplify right side
    574,656.86x = 236,568,748,840.10
  5. Step 5: Solve for x
    x = 236,568,748,840.10/574,656.86
  6. Step 6: Final answer
    x = 411,669.58

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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.