Home / 1,760,803.20-2,641,204.80-431,107.20

Finding the Fourth Proportional to 1,760,803.20, 2,641,204.80 and 431,107.20

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Solution

The fourth proportional to 1,760,803.20, 2,641,204.80 and 431,107.20 is: 646,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760,803.20 : 2,641,204.80 = 431,107.20 : x
  2. Step 2: Convert to fraction form
    1,760,803.20/2,641,204.80 = 431,107.20/x
  3. Step 3: Cross multiply
    1,760,803.20x = 2,641,204.80 × 431,107.20
  4. Step 4: Simplify right side
    1,760,803.20x = 1,138,642,405,954.56
  5. Step 5: Solve for x
    x = 1,138,642,405,954.56/1,760,803.20
  6. Step 6: Final answer
    x = 646,660.80

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Double scale
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Similar ratio
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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.