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Finding the Fourth Proportional to 415,287.15, 622,982.59 and 162,534.95

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Solution

The fourth proportional to 415,287.15, 622,982.59 and 162,534.95 is: 243,822.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,287.15 : 622,982.59 = 162,534.95 : x
  2. Step 2: Convert to fraction form
    415,287.15/622,982.59 = 162,534.95/x
  3. Step 3: Cross multiply
    415,287.15x = 622,982.59 × 162,534.95
  4. Step 4: Simplify right side
    415,287.15x = 101,256,447,349.99
  5. Step 5: Solve for x
    x = 101,256,447,349.99/415,287.15
  6. Step 6: Final answer
    x = 243,822.73

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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.