Home / 766,660.66-1,057,274.10-605,899.76

Finding the Fourth Proportional to 766,660.66, 1,057,274.10 and 605,899.76

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Solution

The fourth proportional to 766,660.66, 1,057,274.10 and 605,899.76 is: 835,574.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,660.66 : 1,057,274.10 = 605,899.76 : x
  2. Step 2: Convert to fraction form
    766,660.66/1,057,274.10 = 605,899.76/x
  3. Step 3: Cross multiply
    766,660.66x = 1,057,274.10 × 605,899.76
  4. Step 4: Simplify right side
    766,660.66x = 640,602,118,157.85
  5. Step 5: Solve for x
    x = 640,602,118,157.85/766,660.66
  6. Step 6: Final answer
    x = 835,574.53

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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.