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Finding the Fourth Proportional to 443,998.48, 665,821.68 and 191,297.92

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Solution

The fourth proportional to 443,998.48, 665,821.68 and 191,297.92 is: 286,871.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,998.48 : 665,821.68 = 191,297.92 : x
  2. Step 2: Convert to fraction form
    443,998.48/665,821.68 = 191,297.92/x
  3. Step 3: Cross multiply
    443,998.48x = 665,821.68 × 191,297.92
  4. Step 4: Simplify right side
    443,998.48x = 127,370,302,474.91
  5. Step 5: Solve for x
    x = 127,370,302,474.91/443,998.48
  6. Step 6: Final answer
    x = 286,871.03

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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.