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Finding the Fourth Proportional to 316,383.27, 436,541.28 and 187,362.27

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Solution

The fourth proportional to 316,383.27, 436,541.28 and 187,362.27 is: 258,519.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,383.27 : 436,541.28 = 187,362.27 : x
  2. Step 2: Convert to fraction form
    316,383.27/436,541.28 = 187,362.27/x
  3. Step 3: Cross multiply
    316,383.27x = 436,541.28 × 187,362.27
  4. Step 4: Simplify right side
    316,383.27x = 81,791,365,169.51
  5. Step 5: Solve for x
    x = 81,791,365,169.51/316,383.27
  6. Step 6: Final answer
    x = 258,519.88

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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.