Home / 1,049,934.80-1,448,009.16-667,816.40

Finding the Fourth Proportional to 1,049,934.80, 1,448,009.16 and 667,816.40

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Solution

The fourth proportional to 1,049,934.80, 1,448,009.16 and 667,816.40 is: 921,013.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,934.80 : 1,448,009.16 = 667,816.40 : x
  2. Step 2: Convert to fraction form
    1,049,934.80/1,448,009.16 = 667,816.40/x
  3. Step 3: Cross multiply
    1,049,934.80x = 1,448,009.16 × 667,816.40
  4. Step 4: Simplify right side
    1,049,934.80x = 967,004,264,398.22
  5. Step 5: Solve for x
    x = 967,004,264,398.22/1,049,934.80
  6. Step 6: Final answer
    x = 921,013.63

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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.