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Finding the Fourth Proportional to 316,590.94, 436,891.16 and 173,350.97

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Solution

The fourth proportional to 316,590.94, 436,891.16 and 173,350.97 is: 239,221.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,590.94 : 436,891.16 = 173,350.97 : x
  2. Step 2: Convert to fraction form
    316,590.94/436,891.16 = 173,350.97/x
  3. Step 3: Cross multiply
    316,590.94x = 436,891.16 × 173,350.97
  4. Step 4: Simplify right side
    316,590.94x = 75,735,506,370.43
  5. Step 5: Solve for x
    x = 75,735,506,370.43/316,590.94
  6. Step 6: Final answer
    x = 239,221.96

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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.