Home / 1,188,529.01-1,640,157.98-644,653.11

Finding the Fourth Proportional to 1,188,529.01, 1,640,157.98 and 644,653.11

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Solution

The fourth proportional to 1,188,529.01, 1,640,157.98 and 644,653.11 is: 889,614.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,529.01 : 1,640,157.98 = 644,653.11 : x
  2. Step 2: Convert to fraction form
    1,188,529.01/1,640,157.98 = 644,653.11/x
  3. Step 3: Cross multiply
    1,188,529.01x = 1,640,157.98 × 644,653.11
  4. Step 4: Simplify right side
    1,188,529.01x = 1,057,332,945,625.64
  5. Step 5: Solve for x
    x = 1,057,332,945,625.64/1,188,529.01
  6. Step 6: Final answer
    x = 889,614.76

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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.