Home / 1,906,329.80-2,859,494.70-644,139.20

Finding the Fourth Proportional to 1,906,329.80, 2,859,494.70 and 644,139.20

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Solution

The fourth proportional to 1,906,329.80, 2,859,494.70 and 644,139.20 is: 966,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906,329.80 : 2,859,494.70 = 644,139.20 : x
  2. Step 2: Convert to fraction form
    1,906,329.80/2,859,494.70 = 644,139.20/x
  3. Step 3: Cross multiply
    1,906,329.80x = 2,859,494.70 × 644,139.20
  4. Step 4: Simplify right side
    1,906,329.80x = 1,841,912,628,462.24
  5. Step 5: Solve for x
    x = 1,841,912,628,462.24/1,906,329.80
  6. Step 6: Final answer
    x = 966,208.80

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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.