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Finding the Fourth Proportional to 384,058.00, 529,959.85 and 211,972.79

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Solution

The fourth proportional to 384,058.00, 529,959.85 and 211,972.79 is: 292,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,058.00 : 529,959.85 = 211,972.79 : x
  2. Step 2: Convert to fraction form
    384,058.00/529,959.85 = 211,972.79/x
  3. Step 3: Cross multiply
    384,058.00x = 529,959.85 × 211,972.79
  4. Step 4: Simplify right side
    384,058.00x = 112,337,068,787.45
  5. Step 5: Solve for x
    x = 112,337,068,787.45/384,058.00
  6. Step 6: Final answer
    x = 292,500.27

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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.