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Finding the Fourth Proportional to 322,405.96, 483,982.58 and 172,938.16

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Solution

The fourth proportional to 322,405.96, 483,982.58 and 172,938.16 is: 259,607.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,405.96 : 483,982.58 = 172,938.16 : x
  2. Step 2: Convert to fraction form
    322,405.96/483,982.58 = 172,938.16/x
  3. Step 3: Cross multiply
    322,405.96x = 483,982.58 × 172,938.16
  4. Step 4: Simplify right side
    322,405.96x = 83,699,056,857.25
  5. Step 5: Solve for x
    x = 83,699,056,857.25/322,405.96
  6. Step 6: Final answer
    x = 259,607.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.