Home / 1,189,127.64-1,640,529-679,556.64

Finding the Fourth Proportional to 1,189,127.64, 1,640,529 and 679,556.64

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Solution

The fourth proportional to 1,189,127.64, 1,640,529 and 679,556.64 is: 937,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,127.64 : 1,640,529 = 679,556.64 : x
  2. Step 2: Convert to fraction form
    1,189,127.64/1,640,529 = 679,556.64/x
  3. Step 3: Cross multiply
    1,189,127.64x = 1,640,529 × 679,556.64
  4. Step 4: Simplify right side
    1,189,127.64x = 1,114,832,375,062.56
  5. Step 5: Solve for x
    x = 1,114,832,375,062.56/1,189,127.64
  6. Step 6: Final answer
    x = 937,521.20

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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.