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Finding the Fourth Proportional to 622,851.80, 934,378.34 and 263,076.74

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Solution

The fourth proportional to 622,851.80, 934,378.34 and 263,076.74 is: 394,657.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,851.80 : 934,378.34 = 263,076.74 : x
  2. Step 2: Convert to fraction form
    622,851.80/934,378.34 = 263,076.74/x
  3. Step 3: Cross multiply
    622,851.80x = 934,378.34 × 263,076.74
  4. Step 4: Simplify right side
    622,851.80x = 245,813,210,386.33
  5. Step 5: Solve for x
    x = 245,813,210,386.33/622,851.80
  6. Step 6: Final answer
    x = 394,657.62

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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.