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Finding the Fourth Proportional to 1,787,007.03, 2,466,428.39 and 1,061,715.13

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Solution

The fourth proportional to 1,787,007.03, 2,466,428.39 and 1,061,715.13 is: 1,465,379.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,007.03 : 2,466,428.39 = 1,061,715.13 : x
  2. Step 2: Convert to fraction form
    1,787,007.03/2,466,428.39 = 1,061,715.13/x
  3. Step 3: Cross multiply
    1,787,007.03x = 2,466,428.39 × 1,061,715.13
  4. Step 4: Simplify right side
    1,787,007.03x = 2,618,644,331,231.33
  5. Step 5: Solve for x
    x = 2,618,644,331,231.33/1,787,007.03
  6. Step 6: Final answer
    x = 1,465,379.99

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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.