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Finding the Fourth Proportional to 488,064.56, 731,143.36 and 336,234.81

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Solution

The fourth proportional to 488,064.56, 731,143.36 and 336,234.81 is: 503,695.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,064.56 : 731,143.36 = 336,234.81 : x
  2. Step 2: Convert to fraction form
    488,064.56/731,143.36 = 336,234.81/x
  3. Step 3: Cross multiply
    488,064.56x = 731,143.36 × 336,234.81
  4. Step 4: Simplify right side
    488,064.56x = 245,835,851,894.44
  5. Step 5: Solve for x
    x = 245,835,851,894.44/488,064.56
  6. Step 6: Final answer
    x = 503,695.36

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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.