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Finding the Fourth Proportional to 404,907.66, 558,776.78 and 223,624.19

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Solution

The fourth proportional to 404,907.66, 558,776.78 and 223,624.19 is: 308,603.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,907.66 : 558,776.78 = 223,624.19 : x
  2. Step 2: Convert to fraction form
    404,907.66/558,776.78 = 223,624.19/x
  3. Step 3: Cross multiply
    404,907.66x = 558,776.78 × 223,624.19
  4. Step 4: Simplify right side
    404,907.66x = 124,956,005,935.72
  5. Step 5: Solve for x
    x = 124,956,005,935.72/404,907.66
  6. Step 6: Final answer
    x = 308,603.71

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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.