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Finding the Fourth Proportional to 316,933.98, 437,116.95 and 269,344.86

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Solution

The fourth proportional to 316,933.98, 437,116.95 and 269,344.86 is: 371,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,933.98 : 437,116.95 = 269,344.86 : x
  2. Step 2: Convert to fraction form
    316,933.98/437,116.95 = 269,344.86/x
  3. Step 3: Cross multiply
    316,933.98x = 437,116.95 × 269,344.86
  4. Step 4: Simplify right side
    316,933.98x = 117,735,203,701.38
  5. Step 5: Solve for x
    x = 117,735,203,701.38/316,933.98
  6. Step 6: Final answer
    x = 371,481.79

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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.