Home / 1,096,165.77-1,512,288.81-666,289.05

Finding the Fourth Proportional to 1,096,165.77, 1,512,288.81 and 666,289.05

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Solution

The fourth proportional to 1,096,165.77, 1,512,288.81 and 666,289.05 is: 919,223.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096,165.77 : 1,512,288.81 = 666,289.05 : x
  2. Step 2: Convert to fraction form
    1,096,165.77/1,512,288.81 = 666,289.05/x
  3. Step 3: Cross multiply
    1,096,165.77x = 1,512,288.81 × 666,289.05
  4. Step 4: Simplify right side
    1,096,165.77x = 1,007,621,474,540.53
  5. Step 5: Solve for x
    x = 1,007,621,474,540.53/1,096,165.77
  6. Step 6: Final answer
    x = 919,223.63

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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.