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Finding the Fourth Proportional to 488,907.56, 732,937.51 and 189,181.91

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Solution

The fourth proportional to 488,907.56, 732,937.51 and 189,181.91 is: 283,608.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,907.56 : 732,937.51 = 189,181.91 : x
  2. Step 2: Convert to fraction form
    488,907.56/732,937.51 = 189,181.91/x
  3. Step 3: Cross multiply
    488,907.56x = 732,937.51 × 189,181.91
  4. Step 4: Simplify right side
    488,907.56x = 138,658,520,121.27
  5. Step 5: Solve for x
    x = 138,658,520,121.27/488,907.56
  6. Step 6: Final answer
    x = 283,608.87

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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.