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Finding the Fourth Proportional to 316,722.51, 436,911.44 and 195,825.15

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Solution

The fourth proportional to 316,722.51, 436,911.44 and 195,825.15 is: 270,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,722.51 : 436,911.44 = 195,825.15 : x
  2. Step 2: Convert to fraction form
    316,722.51/436,911.44 = 195,825.15/x
  3. Step 3: Cross multiply
    316,722.51x = 436,911.44 × 195,825.15
  4. Step 4: Simplify right side
    316,722.51x = 85,558,247,295.59
  5. Step 5: Solve for x
    x = 85,558,247,295.59/316,722.51
  6. Step 6: Final answer
    x = 270,136.30

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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.