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Finding the Fourth Proportional to 557,796.02, 769,495.57 and 404,497.91

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Solution

The fourth proportional to 557,796.02, 769,495.57 and 404,497.91 is: 558,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,796.02 : 769,495.57 = 404,497.91 : x
  2. Step 2: Convert to fraction form
    557,796.02/769,495.57 = 404,497.91/x
  3. Step 3: Cross multiply
    557,796.02x = 769,495.57 × 404,497.91
  4. Step 4: Simplify right side
    557,796.02x = 311,259,350,731.75
  5. Step 5: Solve for x
    x = 311,259,350,731.75/557,796.02
  6. Step 6: Final answer
    x = 558,016.45

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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.