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Finding the Fourth Proportional to 1,871,723.78, 2,582,978.82 and 1,012,284.04

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Solution

The fourth proportional to 1,871,723.78, 2,582,978.82 and 1,012,284.04 is: 1,396,951.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,723.78 : 2,582,978.82 = 1,012,284.04 : x
  2. Step 2: Convert to fraction form
    1,871,723.78/2,582,978.82 = 1,012,284.04/x
  3. Step 3: Cross multiply
    1,871,723.78x = 2,582,978.82 × 1,012,284.04
  4. Step 4: Simplify right side
    1,871,723.78x = 2,614,708,235,144.03
  5. Step 5: Solve for x
    x = 2,614,708,235,144.03/1,871,723.78
  6. Step 6: Final answer
    x = 1,396,951.98

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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.