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Finding the Fourth Proportional to 465,995.65, 699,129.55 and 185,554.21

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Solution

The fourth proportional to 465,995.65, 699,129.55 and 185,554.21 is: 278,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,995.65 : 699,129.55 = 185,554.21 : x
  2. Step 2: Convert to fraction form
    465,995.65/699,129.55 = 185,554.21/x
  3. Step 3: Cross multiply
    465,995.65x = 699,129.55 × 185,554.21
  4. Step 4: Simplify right side
    465,995.65x = 129,726,429,822.02
  5. Step 5: Solve for x
    x = 129,726,429,822.02/465,995.65
  6. Step 6: Final answer
    x = 278,385.50

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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.