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Finding the Fourth Proportional to 384,076.98, 530,023.37 and 211,994.91

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Solution

The fourth proportional to 384,076.98, 530,023.37 and 211,994.91 is: 292,551.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,076.98 : 530,023.37 = 211,994.91 : x
  2. Step 2: Convert to fraction form
    384,076.98/530,023.37 = 211,994.91/x
  3. Step 3: Cross multiply
    384,076.98x = 530,023.37 × 211,994.91
  4. Step 4: Simplify right side
    384,076.98x = 112,362,256,621.05
  5. Step 5: Solve for x
    x = 112,362,256,621.05/384,076.98
  6. Step 6: Final answer
    x = 292,551.40

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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.