Home / 853,906.20-1,279,476.90-537,797.40

Finding the Fourth Proportional to 853,906.20, 1,279,476.90 and 537,797.40

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Solution

The fourth proportional to 853,906.20, 1,279,476.90 and 537,797.40 is: 805,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,906.20 : 1,279,476.90 = 537,797.40 : x
  2. Step 2: Convert to fraction form
    853,906.20/1,279,476.90 = 537,797.40/x
  3. Step 3: Cross multiply
    853,906.20x = 1,279,476.90 × 537,797.40
  4. Step 4: Simplify right side
    853,906.20x = 688,099,350,180.06
  5. Step 5: Solve for x
    x = 688,099,350,180.06/853,906.20
  6. Step 6: Final answer
    x = 805,825.45

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1.5x scale

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.