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Finding the Fourth Proportional to 532,783.26, 799,470.15 and 217,215.78

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Solution

The fourth proportional to 532,783.26, 799,470.15 and 217,215.78 is: 325,944.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,783.26 : 799,470.15 = 217,215.78 : x
  2. Step 2: Convert to fraction form
    532,783.26/799,470.15 = 217,215.78/x
  3. Step 3: Cross multiply
    532,783.26x = 799,470.15 × 217,215.78
  4. Step 4: Simplify right side
    532,783.26x = 173,657,532,218.97
  5. Step 5: Solve for x
    x = 173,657,532,218.97/532,783.26
  6. Step 6: Final answer
    x = 325,944.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.