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Finding the Fourth Proportional to 443,295.99, 611,713.89 and 261,973.44

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Solution

The fourth proportional to 443,295.99, 611,713.89 and 261,973.44 is: 361,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,295.99 : 611,713.89 = 261,973.44 : x
  2. Step 2: Convert to fraction form
    443,295.99/611,713.89 = 261,973.44/x
  3. Step 3: Cross multiply
    443,295.99x = 611,713.89 × 261,973.44
  4. Step 4: Simplify right side
    443,295.99x = 160,252,792,059.08
  5. Step 5: Solve for x
    x = 160,252,792,059.08/443,295.99
  6. Step 6: Final answer
    x = 361,502.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.