Home / 393,628.36-543,191.48-232,535.20

Finding the Fourth Proportional to 393,628.36, 543,191.48 and 232,535.20

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Solution

The fourth proportional to 393,628.36, 543,191.48 and 232,535.20 is: 320,889.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,628.36 : 543,191.48 = 232,535.20 : x
  2. Step 2: Convert to fraction form
    393,628.36/543,191.48 = 232,535.20/x
  3. Step 3: Cross multiply
    393,628.36x = 543,191.48 × 232,535.20
  4. Step 4: Simplify right side
    393,628.36x = 126,311,139,440.10
  5. Step 5: Solve for x
    x = 126,311,139,440.10/393,628.36
  6. Step 6: Final answer
    x = 320,889.33

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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.