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Finding the Fourth Proportional to 504,989.30, 757,748.91 and 189,663.86

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Solution

The fourth proportional to 504,989.30, 757,748.91 and 189,663.86 is: 284,595.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,989.30 : 757,748.91 = 189,663.86 : x
  2. Step 2: Convert to fraction form
    504,989.30/757,748.91 = 189,663.86/x
  3. Step 3: Cross multiply
    504,989.30x = 757,748.91 × 189,663.86
  4. Step 4: Simplify right side
    504,989.30x = 143,717,583,181.39
  5. Step 5: Solve for x
    x = 143,717,583,181.39/504,989.30
  6. Step 6: Final answer
    x = 284,595.30

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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.