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Finding the Fourth Proportional to 1,836,948.78, 2,754,473.87 and 825,205.67

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Solution

The fourth proportional to 1,836,948.78, 2,754,473.87 and 825,205.67 is: 1,237,382.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836,948.78 : 2,754,473.87 = 825,205.67 : x
  2. Step 2: Convert to fraction form
    1,836,948.78/2,754,473.87 = 825,205.67/x
  3. Step 3: Cross multiply
    1,836,948.78x = 2,754,473.87 × 825,205.67
  4. Step 4: Simplify right side
    1,836,948.78x = 2,273,007,437,492.45
  5. Step 5: Solve for x
    x = 2,273,007,437,492.45/1,836,948.78
  6. Step 6: Final answer
    x = 1,237,382.04

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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.