Home / 808,212.80-1,211,541.60-628,198.40

Finding the Fourth Proportional to 808,212.80, 1,211,541.60 and 628,198.40

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Solution

The fourth proportional to 808,212.80, 1,211,541.60 and 628,198.40 is: 941,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,212.80 : 1,211,541.60 = 628,198.40 : x
  2. Step 2: Convert to fraction form
    808,212.80/1,211,541.60 = 628,198.40/x
  3. Step 3: Cross multiply
    808,212.80x = 1,211,541.60 × 628,198.40
  4. Step 4: Simplify right side
    808,212.80x = 761,088,494,653.44
  5. Step 5: Solve for x
    x = 761,088,494,653.44/808,212.80
  6. Step 6: Final answer
    x = 941,693.20

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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.