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Finding the Fourth Proportional to 974,389, 1,344,562.32 and 611,696.92

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Solution

The fourth proportional to 974,389, 1,344,562.32 and 611,696.92 is: 844,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,389 : 1,344,562.32 = 611,696.92 : x
  2. Step 2: Convert to fraction form
    974,389/1,344,562.32 = 611,696.92/x
  3. Step 3: Cross multiply
    974,389x = 1,344,562.32 × 611,696.92
  4. Step 4: Simplify right side
    974,389x = 822,464,629,892.06
  5. Step 5: Solve for x
    x = 822,464,629,892.06/974,389
  6. Step 6: Final answer
    x = 844,082.42

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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.