Home / 1,149,441.36-1,586,278.30-640,143.74

Finding the Fourth Proportional to 1,149,441.36, 1,586,278.30 and 640,143.74

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Solution

The fourth proportional to 1,149,441.36, 1,586,278.30 and 640,143.74 is: 883,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,441.36 : 1,586,278.30 = 640,143.74 : x
  2. Step 2: Convert to fraction form
    1,149,441.36/1,586,278.30 = 640,143.74/x
  3. Step 3: Cross multiply
    1,149,441.36x = 1,586,278.30 × 640,143.74
  4. Step 4: Simplify right side
    1,149,441.36x = 1,015,446,123,642.84
  5. Step 5: Solve for x
    x = 1,015,446,123,642.84/1,149,441.36
  6. Step 6: Final answer
    x = 883,425.77

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Double scale
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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.