Home / 1,161,643.13-1,603,046.67-645,399.35

Finding the Fourth Proportional to 1,161,643.13, 1,603,046.67 and 645,399.35

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Solution

The fourth proportional to 1,161,643.13, 1,603,046.67 and 645,399.35 is: 890,639.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,643.13 : 1,603,046.67 = 645,399.35 : x
  2. Step 2: Convert to fraction form
    1,161,643.13/1,603,046.67 = 645,399.35/x
  3. Step 3: Cross multiply
    1,161,643.13x = 1,603,046.67 × 645,399.35
  4. Step 4: Simplify right side
    1,161,643.13x = 1,034,605,278,837.66
  5. Step 5: Solve for x
    x = 1,034,605,278,837.66/1,161,643.13
  6. Step 6: Final answer
    x = 890,639.52

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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.