Home / 766,476.87-1,057,739.13-417,615.54

Finding the Fourth Proportional to 766,476.87, 1,057,739.13 and 417,615.54

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Solution

The fourth proportional to 766,476.87, 1,057,739.13 and 417,615.54 is: 576,310.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,476.87 : 1,057,739.13 = 417,615.54 : x
  2. Step 2: Convert to fraction form
    766,476.87/1,057,739.13 = 417,615.54/x
  3. Step 3: Cross multiply
    766,476.87x = 1,057,739.13 × 417,615.54
  4. Step 4: Simplify right side
    766,476.87x = 441,728,297,954.08
  5. Step 5: Solve for x
    x = 441,728,297,954.08/766,476.87
  6. Step 6: Final answer
    x = 576,310.02

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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.