Home / 1,247,990.76-1,871,991.61-395,066.59

Finding the Fourth Proportional to 1,247,990.76, 1,871,991.61 and 395,066.59

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Solution

The fourth proportional to 1,247,990.76, 1,871,991.61 and 395,066.59 is: 592,601.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,990.76 : 1,871,991.61 = 395,066.59 : x
  2. Step 2: Convert to fraction form
    1,247,990.76/1,871,991.61 = 395,066.59/x
  3. Step 3: Cross multiply
    1,247,990.76x = 1,871,991.61 × 395,066.59
  4. Step 4: Simplify right side
    1,247,990.76x = 739,561,336,203.66
  5. Step 5: Solve for x
    x = 739,561,336,203.66/1,247,990.76
  6. Step 6: Final answer
    x = 592,601.61

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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.