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Finding the Fourth Proportional to 576,658.51, 795,785.57 and 318,553.22

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Solution

The fourth proportional to 576,658.51, 795,785.57 and 318,553.22 is: 439,601.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,658.51 : 795,785.57 = 318,553.22 : x
  2. Step 2: Convert to fraction form
    576,658.51/795,785.57 = 318,553.22/x
  3. Step 3: Cross multiply
    576,658.51x = 795,785.57 × 318,553.22
  4. Step 4: Simplify right side
    576,658.51x = 253,500,054,160.27
  5. Step 5: Solve for x
    x = 253,500,054,160.27/576,658.51
  6. Step 6: Final answer
    x = 439,601.69

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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.