Home / 1,238,977.11-1,856,050.66-697,578.51

Finding the Fourth Proportional to 1,238,977.11, 1,856,050.66 and 697,578.51

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Solution

The fourth proportional to 1,238,977.11, 1,856,050.66 and 697,578.51 is: 1,045,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,977.11 : 1,856,050.66 = 697,578.51 : x
  2. Step 2: Convert to fraction form
    1,238,977.11/1,856,050.66 = 697,578.51/x
  3. Step 3: Cross multiply
    1,238,977.11x = 1,856,050.66 × 697,578.51
  4. Step 4: Simplify right side
    1,238,977.11x = 1,294,741,061,960.35
  5. Step 5: Solve for x
    x = 1,294,741,061,960.35/1,238,977.11
  6. Step 6: Final answer
    x = 1,045,008.05

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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.