Home / 910,864.52-1,257,103.87-528,891.31

Finding the Fourth Proportional to 910,864.52, 1,257,103.87 and 528,891.31

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Solution

The fourth proportional to 910,864.52, 1,257,103.87 and 528,891.31 is: 729,934.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,864.52 : 1,257,103.87 = 528,891.31 : x
  2. Step 2: Convert to fraction form
    910,864.52/1,257,103.87 = 528,891.31/x
  3. Step 3: Cross multiply
    910,864.52x = 1,257,103.87 × 528,891.31
  4. Step 4: Simplify right side
    910,864.52x = 664,871,308,145.38
  5. Step 5: Solve for x
    x = 664,871,308,145.38/910,864.52
  6. Step 6: Final answer
    x = 729,934.36

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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.