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Finding the Fourth Proportional to 1,862,839.14, 2,795,342.94 and 783,273.57

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Solution

The fourth proportional to 1,862,839.14, 2,795,342.94 and 783,273.57 is: 1,175,366.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862,839.14 : 2,795,342.94 = 783,273.57 : x
  2. Step 2: Convert to fraction form
    1,862,839.14/2,795,342.94 = 783,273.57/x
  3. Step 3: Cross multiply
    1,862,839.14x = 2,795,342.94 × 783,273.57
  4. Step 4: Simplify right side
    1,862,839.14x = 2,189,518,243,988.10
  5. Step 5: Solve for x
    x = 2,189,518,243,988.10/1,862,839.14
  6. Step 6: Final answer
    x = 1,175,366.24

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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.