Home / 257,542.24-386,313.36-70,555.36

Finding the Fourth Proportional to 257,542.24, 386,313.36 and 70,555.36

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Solution

The fourth proportional to 257,542.24, 386,313.36 and 70,555.36 is: 105,833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,542.24 : 386,313.36 = 70,555.36 : x
  2. Step 2: Convert to fraction form
    257,542.24/386,313.36 = 70,555.36/x
  3. Step 3: Cross multiply
    257,542.24x = 386,313.36 × 70,555.36
  4. Step 4: Simplify right side
    257,542.24x = 27,256,478,187.61
  5. Step 5: Solve for x
    x = 27,256,478,187.61/257,542.24
  6. Step 6: Final answer
    x = 105,833.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.