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Finding the Fourth Proportional to 404,867.15, 606,817.56 and 188,434.64

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Solution

The fourth proportional to 404,867.15, 606,817.56 and 188,434.64 is: 282,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,867.15 : 606,817.56 = 188,434.64 : x
  2. Step 2: Convert to fraction form
    404,867.15/606,817.56 = 188,434.64/x
  3. Step 3: Cross multiply
    404,867.15x = 606,817.56 × 188,434.64
  4. Step 4: Simplify right side
    404,867.15x = 114,345,448,464.28
  5. Step 5: Solve for x
    x = 114,345,448,464.28/404,867.15
  6. Step 6: Final answer
    x = 282,427.08

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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.