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Finding the Fourth Proportional to 621,617.76, 932,709.60 and 301,596.89

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Solution

The fourth proportional to 621,617.76, 932,709.60 and 301,596.89 is: 452,532.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,617.76 : 932,709.60 = 301,596.89 : x
  2. Step 2: Convert to fraction form
    621,617.76/932,709.60 = 301,596.89/x
  3. Step 3: Cross multiply
    621,617.76x = 932,709.60 × 301,596.89
  4. Step 4: Simplify right side
    621,617.76x = 281,302,309,969.60
  5. Step 5: Solve for x
    x = 281,302,309,969.60/621,617.76
  6. Step 6: Final answer
    x = 452,532.61

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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.