Home / 554,289.66-764,919.86-299,640.78

Finding the Fourth Proportional to 554,289.66, 764,919.86 and 299,640.78

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Solution

The fourth proportional to 554,289.66, 764,919.86 and 299,640.78 is: 413,504.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,289.66 : 764,919.86 = 299,640.78 : x
  2. Step 2: Convert to fraction form
    554,289.66/764,919.86 = 299,640.78/x
  3. Step 3: Cross multiply
    554,289.66x = 764,919.86 × 299,640.78
  4. Step 4: Simplify right side
    554,289.66x = 229,201,181,989.69
  5. Step 5: Solve for x
    x = 229,201,181,989.69/554,289.66
  6. Step 6: Final answer
    x = 413,504.34

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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.