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Finding the Fourth Proportional to 404,506.80, 606,978.90 and 179,901.90

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Solution

The fourth proportional to 404,506.80, 606,978.90 and 179,901.90 is: 269,950.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,506.80 : 606,978.90 = 179,901.90 : x
  2. Step 2: Convert to fraction form
    404,506.80/606,978.90 = 179,901.90/x
  3. Step 3: Cross multiply
    404,506.80x = 606,978.90 × 179,901.90
  4. Step 4: Simplify right side
    404,506.80x = 109,196,657,369.91
  5. Step 5: Solve for x
    x = 109,196,657,369.91/404,506.80
  6. Step 6: Final answer
    x = 269,950.12

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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.