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Finding the Fourth Proportional to 927,299.20, 1,389,144 and 683,696.56

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Solution

The fourth proportional to 927,299.20, 1,389,144 and 683,696.56 is: 1,024,214.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,299.20 : 1,389,144 = 683,696.56 : x
  2. Step 2: Convert to fraction form
    927,299.20/1,389,144 = 683,696.56/x
  3. Step 3: Cross multiply
    927,299.20x = 1,389,144 × 683,696.56
  4. Step 4: Simplify right side
    927,299.20x = 949,752,974,144.64
  5. Step 5: Solve for x
    x = 949,752,974,144.64/927,299.20
  6. Step 6: Final answer
    x = 1,024,214.16

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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.