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Finding the Fourth Proportional to 1,375,706, 1,898,474.28 and 772,094

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Solution

The fourth proportional to 1,375,706, 1,898,474.28 and 772,094 is: 1,065,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,706 : 1,898,474.28 = 772,094 : x
  2. Step 2: Convert to fraction form
    1,375,706/1,898,474.28 = 772,094/x
  3. Step 3: Cross multiply
    1,375,706x = 1,898,474.28 × 772,094
  4. Step 4: Simplify right side
    1,375,706x = 1,465,800,600,742.32
  5. Step 5: Solve for x
    x = 1,465,800,600,742.32/1,375,706
  6. Step 6: Final answer
    x = 1,065,489.72

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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.