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Finding the Fourth Proportional to 1,451,792, 2,003,378 and 807,188.48

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Solution

The fourth proportional to 1,451,792, 2,003,378 and 807,188.48 is: 1,113,867.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451,792 : 2,003,378 = 807,188.48 : x
  2. Step 2: Convert to fraction form
    1,451,792/2,003,378 = 807,188.48/x
  3. Step 3: Cross multiply
    1,451,792x = 2,003,378 × 807,188.48
  4. Step 4: Simplify right side
    1,451,792x = 1,617,103,642,685.44
  5. Step 5: Solve for x
    x = 1,617,103,642,685.44/1,451,792
  6. Step 6: Final answer
    x = 1,113,867.31

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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.