Home / 809,388.71-1,116,949.57-446,804.78

Finding the Fourth Proportional to 809,388.71, 1,116,949.57 and 446,804.78

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Solution

The fourth proportional to 809,388.71, 1,116,949.57 and 446,804.78 is: 616,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,388.71 : 1,116,949.57 = 446,804.78 : x
  2. Step 2: Convert to fraction form
    809,388.71/1,116,949.57 = 446,804.78/x
  3. Step 3: Cross multiply
    809,388.71x = 1,116,949.57 × 446,804.78
  4. Step 4: Simplify right side
    809,388.71x = 499,058,404,660.92
  5. Step 5: Solve for x
    x = 499,058,404,660.92/809,388.71
  6. Step 6: Final answer
    x = 616,586.81

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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.