Home / 825,362.97-1,138,895.67-481,112.76

Finding the Fourth Proportional to 825,362.97, 1,138,895.67 and 481,112.76

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Solution

The fourth proportional to 825,362.97, 1,138,895.67 and 481,112.76 is: 663,874.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,362.97 : 1,138,895.67 = 481,112.76 : x
  2. Step 2: Convert to fraction form
    825,362.97/1,138,895.67 = 481,112.76/x
  3. Step 3: Cross multiply
    825,362.97x = 1,138,895.67 × 481,112.76
  4. Step 4: Simplify right side
    825,362.97x = 547,937,239,145.75
  5. Step 5: Solve for x
    x = 547,937,239,145.75/825,362.97
  6. Step 6: Final answer
    x = 663,874.27

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Double scale
Find fourth proportional to 825,363.97, 1,138,897.05 and 481,113.76
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1.5x scale

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.