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Finding the Fourth Proportional to 587,002.72, 880,638.54 and 213,025.72

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Solution

The fourth proportional to 587,002.72, 880,638.54 and 213,025.72 is: 319,587.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,002.72 : 880,638.54 = 213,025.72 : x
  2. Step 2: Convert to fraction form
    587,002.72/880,638.54 = 213,025.72/x
  3. Step 3: Cross multiply
    587,002.72x = 880,638.54 × 213,025.72
  4. Step 4: Simplify right side
    587,002.72x = 187,598,659,043.25
  5. Step 5: Solve for x
    x = 187,598,659,043.25/587,002.72
  6. Step 6: Final answer
    x = 319,587.38

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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.