Home / 1,161,651.68-1,603,085.73-645,406.28

Finding the Fourth Proportional to 1,161,651.68, 1,603,085.73 and 645,406.28

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Solution

The fourth proportional to 1,161,651.68, 1,603,085.73 and 645,406.28 is: 890,664.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,651.68 : 1,603,085.73 = 645,406.28 : x
  2. Step 2: Convert to fraction form
    1,161,651.68/1,603,085.73 = 645,406.28/x
  3. Step 3: Cross multiply
    1,161,651.68x = 1,603,085.73 × 645,406.28
  4. Step 4: Simplify right side
    1,161,651.68x = 1,034,641,596,726.66
  5. Step 5: Solve for x
    x = 1,034,641,596,726.66/1,161,651.68
  6. Step 6: Final answer
    x = 890,664.23

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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.