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Finding the Fourth Proportional to 226,953.34, 312,519.45 and 221,918.14

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Solution

The fourth proportional to 226,953.34, 312,519.45 and 221,918.14 is: 305,585.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,953.34 : 312,519.45 = 221,918.14 : x
  2. Step 2: Convert to fraction form
    226,953.34/312,519.45 = 221,918.14/x
  3. Step 3: Cross multiply
    226,953.34x = 312,519.45 × 221,918.14
  4. Step 4: Simplify right side
    226,953.34x = 69,353,735,057.82
  5. Step 5: Solve for x
    x = 69,353,735,057.82/226,953.34
  6. Step 6: Final answer
    x = 305,585.88

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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.