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Finding the Fourth Proportional to 372,616.20, 520,481.70 and 372,616.20

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Solution

The fourth proportional to 372,616.20, 520,481.70 and 372,616.20 is: 520,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,616.20 : 520,481.70 = 372,616.20 : x
  2. Step 2: Convert to fraction form
    372,616.20/520,481.70 = 372,616.20/x
  3. Step 3: Cross multiply
    372,616.20x = 520,481.70 × 372,616.20
  4. Step 4: Simplify right side
    372,616.20x = 193,939,913,223.54
  5. Step 5: Solve for x
    x = 193,939,913,223.54/372,616.20
  6. Step 6: Final answer
    x = 520,481.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.