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Finding the Fourth Proportional to 464,879.42, 641,484.31 and 260,952.78

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Solution

The fourth proportional to 464,879.42, 641,484.31 and 260,952.78 is: 360,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,879.42 : 641,484.31 = 260,952.78 : x
  2. Step 2: Convert to fraction form
    464,879.42/641,484.31 = 260,952.78/x
  3. Step 3: Cross multiply
    464,879.42x = 641,484.31 × 260,952.78
  4. Step 4: Simplify right side
    464,879.42x = 167,397,109,508.70
  5. Step 5: Solve for x
    x = 167,397,109,508.70/464,879.42
  6. Step 6: Final answer
    x = 360,087.16

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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.