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Finding the Fourth Proportional to 384,003.04, 529,920.48 and 211,922.60

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Solution

The fourth proportional to 384,003.04, 529,920.48 and 211,922.60 is: 292,451.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,003.04 : 529,920.48 = 211,922.60 : x
  2. Step 2: Convert to fraction form
    384,003.04/529,920.48 = 211,922.60/x
  3. Step 3: Cross multiply
    384,003.04x = 529,920.48 × 211,922.60
  4. Step 4: Simplify right side
    384,003.04x = 112,302,125,914.85
  5. Step 5: Solve for x
    x = 112,302,125,914.85/384,003.04
  6. Step 6: Final answer
    x = 292,451.14

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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.