Home / 1,188,738.83-1,640,459.56-679,452.14

Finding the Fourth Proportional to 1,188,738.83, 1,640,459.56 and 679,452.14

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Solution

The fourth proportional to 1,188,738.83, 1,640,459.56 and 679,452.14 is: 937,643.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,738.83 : 1,640,459.56 = 679,452.14 : x
  2. Step 2: Convert to fraction form
    1,188,738.83/1,640,459.56 = 679,452.14/x
  3. Step 3: Cross multiply
    1,188,738.83x = 1,640,459.56 × 679,452.14
  4. Step 4: Simplify right side
    1,188,738.83x = 1,114,613,758,625.46
  5. Step 5: Solve for x
    x = 1,114,613,758,625.46/1,188,738.83
  6. Step 6: Final answer
    x = 937,643.94

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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.