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Finding the Fourth Proportional to 404,214.64, 605,783.19 and 191,039.15

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Solution

The fourth proportional to 404,214.64, 605,783.19 and 191,039.15 is: 286,304.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,214.64 : 605,783.19 = 191,039.15 : x
  2. Step 2: Convert to fraction form
    404,214.64/605,783.19 = 191,039.15/x
  3. Step 3: Cross multiply
    404,214.64x = 605,783.19 × 191,039.15
  4. Step 4: Simplify right side
    404,214.64x = 115,728,305,701.89
  5. Step 5: Solve for x
    x = 115,728,305,701.89/404,214.64
  6. Step 6: Final answer
    x = 286,304.09

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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.