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Finding the Fourth Proportional to 1,835,719.70, 2,754,563.70 and 770,869.40

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Solution

The fourth proportional to 1,835,719.70, 2,754,563.70 and 770,869.40 is: 1,156,717.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835,719.70 : 2,754,563.70 = 770,869.40 : x
  2. Step 2: Convert to fraction form
    1,835,719.70/2,754,563.70 = 770,869.40/x
  3. Step 3: Cross multiply
    1,835,719.70x = 2,754,563.70 × 770,869.40
  4. Step 4: Simplify right side
    1,835,719.70x = 2,123,408,866,680.78
  5. Step 5: Solve for x
    x = 2,123,408,866,680.78/1,835,719.70
  6. Step 6: Final answer
    x = 1,156,717.37

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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.