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Finding the Fourth Proportional to 465,572.46, 642,442.10 and 261,590.96

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Solution

The fourth proportional to 465,572.46, 642,442.10 and 261,590.96 is: 360,968.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,572.46 : 642,442.10 = 261,590.96 : x
  2. Step 2: Convert to fraction form
    465,572.46/642,442.10 = 261,590.96/x
  3. Step 3: Cross multiply
    465,572.46x = 642,442.10 × 261,590.96
  4. Step 4: Simplify right side
    465,572.46x = 168,057,045,683.42
  5. Step 5: Solve for x
    x = 168,057,045,683.42/465,572.46
  6. Step 6: Final answer
    x = 360,968.61

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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.