Home / 2,161,298.70-2,982,511.53-1,243,669.55

Finding the Fourth Proportional to 2,161,298.70, 2,982,511.53 and 1,243,669.55

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Solution

The fourth proportional to 2,161,298.70, 2,982,511.53 and 1,243,669.55 is: 1,716,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161,298.70 : 2,982,511.53 = 1,243,669.55 : x
  2. Step 2: Convert to fraction form
    2,161,298.70/2,982,511.53 = 1,243,669.55/x
  3. Step 3: Cross multiply
    2,161,298.70x = 2,982,511.53 × 1,243,669.55
  4. Step 4: Simplify right side
    2,161,298.70x = 3,709,258,757,472.35
  5. Step 5: Solve for x
    x = 3,709,258,757,472.35/2,161,298.70
  6. Step 6: Final answer
    x = 1,716,217.55

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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.