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Finding the Fourth Proportional to 316,450.92, 436,698.58 and 171,253.34

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Solution

The fourth proportional to 316,450.92, 436,698.58 and 171,253.34 is: 236,327.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,450.92 : 436,698.58 = 171,253.34 : x
  2. Step 2: Convert to fraction form
    316,450.92/436,698.58 = 171,253.34/x
  3. Step 3: Cross multiply
    316,450.92x = 436,698.58 × 171,253.34
  4. Step 4: Simplify right side
    316,450.92x = 74,786,090,398.26
  5. Step 5: Solve for x
    x = 74,786,090,398.26/316,450.92
  6. Step 6: Final answer
    x = 236,327.61

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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.