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Finding the Fourth Proportional to 1,871,226, 2,806,415.69 and 859,375.22

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Solution

The fourth proportional to 1,871,226, 2,806,415.69 and 859,375.22 is: 1,288,868.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,226 : 2,806,415.69 = 859,375.22 : x
  2. Step 2: Convert to fraction form
    1,871,226/2,806,415.69 = 859,375.22/x
  3. Step 3: Cross multiply
    1,871,226x = 2,806,415.69 × 859,375.22
  4. Step 4: Simplify right side
    1,871,226x = 2,411,764,082,676.25
  5. Step 5: Solve for x
    x = 2,411,764,082,676.25/1,871,226
  6. Step 6: Final answer
    x = 1,288,868.41

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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.