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Finding the Fourth Proportional to 563,331, 777,396.78 and 324,867

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Solution

The fourth proportional to 563,331, 777,396.78 and 324,867 is: 448,316.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,331 : 777,396.78 = 324,867 : x
  2. Step 2: Convert to fraction form
    563,331/777,396.78 = 324,867/x
  3. Step 3: Cross multiply
    563,331x = 777,396.78 × 324,867
  4. Step 4: Simplify right side
    563,331x = 252,550,559,728.26
  5. Step 5: Solve for x
    x = 252,550,559,728.26/563,331
  6. Step 6: Final answer
    x = 448,316.46

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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.