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Finding the Fourth Proportional to 587,398.98, 810,740.97 and 332,890.50

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Solution

The fourth proportional to 587,398.98, 810,740.97 and 332,890.50 is: 459,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,398.98 : 810,740.97 = 332,890.50 : x
  2. Step 2: Convert to fraction form
    587,398.98/810,740.97 = 332,890.50/x
  3. Step 3: Cross multiply
    587,398.98x = 810,740.97 × 332,890.50
  4. Step 4: Simplify right side
    587,398.98x = 269,887,966,873.79
  5. Step 5: Solve for x
    x = 269,887,966,873.79/587,398.98
  6. Step 6: Final answer
    x = 459,462.78

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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.