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Finding the Fourth Proportional to 1,254,867.88, 1,731,727.20 and 681,910.34

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Solution

The fourth proportional to 1,254,867.88, 1,731,727.20 and 681,910.34 is: 941,041.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,867.88 : 1,731,727.20 = 681,910.34 : x
  2. Step 2: Convert to fraction form
    1,254,867.88/1,731,727.20 = 681,910.34/x
  3. Step 3: Cross multiply
    1,254,867.88x = 1,731,727.20 × 681,910.34
  4. Step 4: Simplify right side
    1,254,867.88x = 1,180,882,683,739.25
  5. Step 5: Solve for x
    x = 1,180,882,683,739.25/1,254,867.88
  6. Step 6: Final answer
    x = 941,041.45

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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.