Home / 1,189,134.51-1,640,982.85-672,879.00

Finding the Fourth Proportional to 1,189,134.51, 1,640,982.85 and 672,879.00

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Solution

The fourth proportional to 1,189,134.51, 1,640,982.85 and 672,879.00 is: 928,560.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,134.51 : 1,640,982.85 = 672,879.00 : x
  2. Step 2: Convert to fraction form
    1,189,134.51/1,640,982.85 = 672,879.00/x
  3. Step 3: Cross multiply
    1,189,134.51x = 1,640,982.85 × 672,879.00
  4. Step 4: Simplify right side
    1,189,134.51x = 1,104,182,894,366.11
  5. Step 5: Solve for x
    x = 1,104,182,894,366.11/1,189,134.51
  6. Step 6: Final answer
    x = 928,560.13

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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.