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Finding the Fourth Proportional to 1,945,603.49, 2,916,827.91 and 809,216.42

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Solution

The fourth proportional to 1,945,603.49, 2,916,827.91 and 809,216.42 is: 1,213,168.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945,603.49 : 2,916,827.91 = 809,216.42 : x
  2. Step 2: Convert to fraction form
    1,945,603.49/2,916,827.91 = 809,216.42/x
  3. Step 3: Cross multiply
    1,945,603.49x = 2,916,827.91 × 809,216.42
  4. Step 4: Simplify right side
    1,945,603.49x = 2,360,345,024,502.14
  5. Step 5: Solve for x
    x = 2,360,345,024,502.14/1,945,603.49
  6. Step 6: Final answer
    x = 1,213,168.58

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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.