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Finding the Fourth Proportional to 316,371.85, 436,525.64 and 187,350.85

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Solution

The fourth proportional to 316,371.85, 436,525.64 and 187,350.85 is: 258,504.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,371.85 : 436,525.64 = 187,350.85 : x
  2. Step 2: Convert to fraction form
    316,371.85/436,525.64 = 187,350.85/x
  3. Step 3: Cross multiply
    316,371.85x = 436,525.64 × 187,350.85
  4. Step 4: Simplify right side
    316,371.85x = 81,783,448,764.04
  5. Step 5: Solve for x
    x = 81,783,448,764.04/316,371.85
  6. Step 6: Final answer
    x = 258,504.19

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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.