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Finding the Fourth Proportional to 300,955.24, 415,315.58 and 164,986.72

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Solution

The fourth proportional to 300,955.24, 415,315.58 and 164,986.72 is: 227,680.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,955.24 : 415,315.58 = 164,986.72 : x
  2. Step 2: Convert to fraction form
    300,955.24/415,315.58 = 164,986.72/x
  3. Step 3: Cross multiply
    300,955.24x = 415,315.58 × 164,986.72
  4. Step 4: Simplify right side
    300,955.24x = 68,521,554,683.28
  5. Step 5: Solve for x
    x = 68,521,554,683.28/300,955.24
  6. Step 6: Final answer
    x = 227,680.22

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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.