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Finding the Fourth Proportional to 316,595.73, 436,902.81 and 171,403.04

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Solution

The fourth proportional to 316,595.73, 436,902.81 and 171,403.04 is: 236,536.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,595.73 : 436,902.81 = 171,403.04 : x
  2. Step 2: Convert to fraction form
    316,595.73/436,902.81 = 171,403.04/x
  3. Step 3: Cross multiply
    316,595.73x = 436,902.81 × 171,403.04
  4. Step 4: Simplify right side
    316,595.73x = 74,886,469,818.54
  5. Step 5: Solve for x
    x = 74,886,469,818.54/316,595.73
  6. Step 6: Final answer
    x = 236,536.58

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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.