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Finding the Fourth Proportional to 1,835,718.70, 2,754,562.20 and 770,868.40

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Solution

The fourth proportional to 1,835,718.70, 2,754,562.20 and 770,868.40 is: 1,156,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835,718.70 : 2,754,562.20 = 770,868.40 : x
  2. Step 2: Convert to fraction form
    1,835,718.70/2,754,562.20 = 770,868.40/x
  3. Step 3: Cross multiply
    1,835,718.70x = 2,754,562.20 × 770,868.40
  4. Step 4: Simplify right side
    1,835,718.70x = 2,123,404,955,814.48
  5. Step 5: Solve for x
    x = 2,123,404,955,814.48/1,835,718.70
  6. Step 6: Final answer
    x = 1,156,715.87

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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.