Home / 291,921.36-402,642.48-189,756.24

Finding the Fourth Proportional to 291,921.36, 402,642.48 and 189,756.24

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Solution

The fourth proportional to 291,921.36, 402,642.48 and 189,756.24 is: 261,727.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,921.36 : 402,642.48 = 189,756.24 : x
  2. Step 2: Convert to fraction form
    291,921.36/402,642.48 = 189,756.24/x
  3. Step 3: Cross multiply
    291,921.36x = 402,642.48 × 189,756.24
  4. Step 4: Simplify right side
    291,921.36x = 76,403,923,069.08
  5. Step 5: Solve for x
    x = 76,403,923,069.08/291,921.36
  6. Step 6: Final answer
    x = 261,727.76

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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.