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Finding the Fourth Proportional to 404,699.67, 558,490.07 and 223,411.70

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Solution

The fourth proportional to 404,699.67, 558,490.07 and 223,411.70 is: 308,310.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,699.67 : 558,490.07 = 223,411.70 : x
  2. Step 2: Convert to fraction form
    404,699.67/558,490.07 = 223,411.70/x
  3. Step 3: Cross multiply
    404,699.67x = 558,490.07 × 223,411.70
  4. Step 4: Simplify right side
    404,699.67x = 124,773,213,179.37
  5. Step 5: Solve for x
    x = 124,773,213,179.37/404,699.67
  6. Step 6: Final answer
    x = 308,310.64

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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.