Home / 611,789.19-844,403.85-339,950.36

Finding the Fourth Proportional to 611,789.19, 844,403.85 and 339,950.36

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Solution

The fourth proportional to 611,789.19, 844,403.85 and 339,950.36 is: 469,206.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,789.19 : 844,403.85 = 339,950.36 : x
  2. Step 2: Convert to fraction form
    611,789.19/844,403.85 = 339,950.36/x
  3. Step 3: Cross multiply
    611,789.19x = 844,403.85 × 339,950.36
  4. Step 4: Simplify right side
    611,789.19x = 287,055,388,570.87
  5. Step 5: Solve for x
    x = 287,055,388,570.87/611,789.19
  6. Step 6: Final answer
    x = 469,206.38

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1.5x scale

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.