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Finding the Fourth Proportional to 395,492.52, 592,745.34 and 192,921.65

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Solution

The fourth proportional to 395,492.52, 592,745.34 and 192,921.65 is: 289,141.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,492.52 : 592,745.34 = 192,921.65 : x
  2. Step 2: Convert to fraction form
    395,492.52/592,745.34 = 192,921.65/x
  3. Step 3: Cross multiply
    395,492.52x = 592,745.34 × 192,921.65
  4. Step 4: Simplify right side
    395,492.52x = 114,353,409,005.14
  5. Step 5: Solve for x
    x = 114,353,409,005.14/395,492.52
  6. Step 6: Final answer
    x = 289,141.77

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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.