Home / 826,623.30-1,239,934.95-543,188.10

Finding the Fourth Proportional to 826,623.30, 1,239,934.95 and 543,188.10

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Solution

The fourth proportional to 826,623.30, 1,239,934.95 and 543,188.10 is: 814,782.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,623.30 : 1,239,934.95 = 543,188.10 : x
  2. Step 2: Convert to fraction form
    826,623.30/1,239,934.95 = 543,188.10/x
  3. Step 3: Cross multiply
    826,623.30x = 1,239,934.95 × 543,188.10
  4. Step 4: Simplify right side
    826,623.30x = 673,517,909,614.10
  5. Step 5: Solve for x
    x = 673,517,909,614.10/826,623.30
  6. Step 6: Final answer
    x = 814,782.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.