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Finding the Fourth Proportional to 574,290.57, 861,565.48 and 190,038.44

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Solution

The fourth proportional to 574,290.57, 861,565.48 and 190,038.44 is: 285,100.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,290.57 : 861,565.48 = 190,038.44 : x
  2. Step 2: Convert to fraction form
    574,290.57/861,565.48 = 190,038.44/x
  3. Step 3: Cross multiply
    574,290.57x = 861,565.48 × 190,038.44
  4. Step 4: Simplify right side
    574,290.57x = 163,730,562,524.84
  5. Step 5: Solve for x
    x = 163,730,562,524.84/574,290.57
  6. Step 6: Final answer
    x = 285,100.56

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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.