Home / 1,328,788.40-1,993,111.52-654,197.31

Finding the Fourth Proportional to 1,328,788.40, 1,993,111.52 and 654,197.31

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Solution

The fourth proportional to 1,328,788.40, 1,993,111.52 and 654,197.31 is: 981,260.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,788.40 : 1,993,111.52 = 654,197.31 : x
  2. Step 2: Convert to fraction form
    1,328,788.40/1,993,111.52 = 654,197.31/x
  3. Step 3: Cross multiply
    1,328,788.40x = 1,993,111.52 × 654,197.31
  4. Step 4: Simplify right side
    1,328,788.40x = 1,303,888,191,643.02
  5. Step 5: Solve for x
    x = 1,303,888,191,643.02/1,328,788.40
  6. Step 6: Final answer
    x = 981,260.97

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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.