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Finding the Fourth Proportional to 404,642.58, 558,616.62 and 295,624.50

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Solution

The fourth proportional to 404,642.58, 558,616.62 and 295,624.50 is: 408,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,642.58 : 558,616.62 = 295,624.50 : x
  2. Step 2: Convert to fraction form
    404,642.58/558,616.62 = 295,624.50/x
  3. Step 3: Cross multiply
    404,642.58x = 558,616.62 × 295,624.50
  4. Step 4: Simplify right side
    404,642.58x = 165,140,758,979.19
  5. Step 5: Solve for x
    x = 165,140,758,979.19/404,642.58
  6. Step 6: Final answer
    x = 408,115.13

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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.