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Finding the Fourth Proportional to 464,840.54, 641,452.98 and 260,872.40

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Solution

The fourth proportional to 464,840.54, 641,452.98 and 260,872.40 is: 359,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,840.54 : 641,452.98 = 260,872.40 : x
  2. Step 2: Convert to fraction form
    464,840.54/641,452.98 = 260,872.40/x
  3. Step 3: Cross multiply
    464,840.54x = 641,452.98 × 260,872.40
  4. Step 4: Simplify right side
    464,840.54x = 167,337,378,379.75
  5. Step 5: Solve for x
    x = 167,337,378,379.75/464,840.54
  6. Step 6: Final answer
    x = 359,988.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.