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Finding the Fourth Proportional to 404,447.99, 558,137.69 and 223,159.86

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Solution

The fourth proportional to 404,447.99, 558,137.69 and 223,159.86 is: 307,960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,447.99 : 558,137.69 = 223,159.86 : x
  2. Step 2: Convert to fraction form
    404,447.99/558,137.69 = 223,159.86/x
  3. Step 3: Cross multiply
    404,447.99x = 558,137.69 × 223,159.86
  4. Step 4: Simplify right side
    404,447.99x = 124,553,928,482.17
  5. Step 5: Solve for x
    x = 124,553,928,482.17/404,447.99
  6. Step 6: Final answer
    x = 307,960.31

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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.