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Finding the Fourth Proportional to 587,178.80, 810,279.66 and 332,531.84

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Solution

The fourth proportional to 587,178.80, 810,279.66 and 332,531.84 is: 458,878.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,178.80 : 810,279.66 = 332,531.84 : x
  2. Step 2: Convert to fraction form
    587,178.80/810,279.66 = 332,531.84/x
  3. Step 3: Cross multiply
    587,178.80x = 810,279.66 × 332,531.84
  4. Step 4: Simplify right side
    587,178.80x = 269,443,786,254.37
  5. Step 5: Solve for x
    x = 269,443,786,254.37/587,178.80
  6. Step 6: Final answer
    x = 458,878.60

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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.