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Finding the Fourth Proportional to 316,625.14, 436,922.67 and 173,386.90

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Solution

The fourth proportional to 316,625.14, 436,922.67 and 173,386.90 is: 239,262.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,625.14 : 436,922.67 = 173,386.90 : x
  2. Step 2: Convert to fraction form
    316,625.14/436,922.67 = 173,386.90/x
  3. Step 3: Cross multiply
    316,625.14x = 436,922.67 × 173,386.90
  4. Step 4: Simplify right side
    316,625.14x = 75,756,667,291.02
  5. Step 5: Solve for x
    x = 75,756,667,291.02/316,625.14
  6. Step 6: Final answer
    x = 239,262.96

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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.