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Finding the Fourth Proportional to 1,718,894.94, 2,371,936.15 and 993,789.39

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Solution

The fourth proportional to 1,718,894.94, 2,371,936.15 and 993,789.39 is: 1,371,349.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718,894.94 : 2,371,936.15 = 993,789.39 : x
  2. Step 2: Convert to fraction form
    1,718,894.94/2,371,936.15 = 993,789.39/x
  3. Step 3: Cross multiply
    1,718,894.94x = 2,371,936.15 × 993,789.39
  4. Step 4: Simplify right side
    1,718,894.94x = 2,357,204,989,764.45
  5. Step 5: Solve for x
    x = 2,357,204,989,764.45/1,718,894.94
  6. Step 6: Final answer
    x = 1,371,349.08

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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.