Home / 806,422.20-1,207,883.70-666,454.20

Finding the Fourth Proportional to 806,422.20, 1,207,883.70 and 666,454.20

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Solution

The fourth proportional to 806,422.20, 1,207,883.70 and 666,454.20 is: 998,235.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,422.20 : 1,207,883.70 = 666,454.20 : x
  2. Step 2: Convert to fraction form
    806,422.20/1,207,883.70 = 666,454.20/x
  3. Step 3: Cross multiply
    806,422.20x = 1,207,883.70 × 666,454.20
  4. Step 4: Simplify right side
    806,422.20x = 804,999,164,976.54
  5. Step 5: Solve for x
    x = 804,999,164,976.54/806,422.20
  6. Step 6: Final answer
    x = 998,235.37

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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.