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Finding the Fourth Proportional to 292,939.00, 439,408.49 and 277,979.92

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Solution

The fourth proportional to 292,939.00, 439,408.49 and 277,979.92 is: 416,969.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,939.00 : 439,408.49 = 277,979.92 : x
  2. Step 2: Convert to fraction form
    292,939.00/439,408.49 = 277,979.92/x
  3. Step 3: Cross multiply
    292,939.00x = 439,408.49 × 277,979.92
  4. Step 4: Simplify right side
    292,939.00x = 122,146,735,395.43
  5. Step 5: Solve for x
    x = 122,146,735,395.43/292,939.00
  6. Step 6: Final answer
    x = 416,969.87

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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.