Home / 1,906,295.80-2,859,443.70-644,105.20

Finding the Fourth Proportional to 1,906,295.80, 2,859,443.70 and 644,105.20

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Solution

The fourth proportional to 1,906,295.80, 2,859,443.70 and 644,105.20 is: 966,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906,295.80 : 2,859,443.70 = 644,105.20 : x
  2. Step 2: Convert to fraction form
    1,906,295.80/2,859,443.70 = 644,105.20/x
  3. Step 3: Cross multiply
    1,906,295.80x = 2,859,443.70 × 644,105.20
  4. Step 4: Simplify right side
    1,906,295.80x = 1,841,782,556,277.24
  5. Step 5: Solve for x
    x = 1,841,782,556,277.24/1,906,295.80
  6. Step 6: Final answer
    x = 966,157.80

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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.