Home / 829,816.80-1,244,790.64-408,863.20

Finding the Fourth Proportional to 829,816.80, 1,244,790.64 and 408,863.20

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Solution

The fourth proportional to 829,816.80, 1,244,790.64 and 408,863.20 is: 613,327.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,816.80 : 1,244,790.64 = 408,863.20 : x
  2. Step 2: Convert to fraction form
    829,816.80/1,244,790.64 = 408,863.20/x
  3. Step 3: Cross multiply
    829,816.80x = 1,244,790.64 × 408,863.20
  4. Step 4: Simplify right side
    829,816.80x = 508,949,084,400.45
  5. Step 5: Solve for x
    x = 508,949,084,400.45/829,816.80
  6. Step 6: Final answer
    x = 613,327.04

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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.