Home / 262,415.73-393,116.12-219,789.69

Finding the Fourth Proportional to 262,415.73, 393,116.12 and 219,789.69

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Solution

The fourth proportional to 262,415.73, 393,116.12 and 219,789.69 is: 329,259.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,415.73 : 393,116.12 = 219,789.69 : x
  2. Step 2: Convert to fraction form
    262,415.73/393,116.12 = 219,789.69/x
  3. Step 3: Cross multiply
    262,415.73x = 393,116.12 × 219,789.69
  4. Step 4: Simplify right side
    262,415.73x = 86,402,870,148.80
  5. Step 5: Solve for x
    x = 86,402,870,148.80/262,415.73
  6. Step 6: Final answer
    x = 329,259.49

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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.