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Finding the Fourth Proportional to 576,691.81, 865,061.28 and 197,873.03

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Solution

The fourth proportional to 576,691.81, 865,061.28 and 197,873.03 is: 296,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,691.81 : 865,061.28 = 197,873.03 : x
  2. Step 2: Convert to fraction form
    576,691.81/865,061.28 = 197,873.03/x
  3. Step 3: Cross multiply
    576,691.81x = 865,061.28 × 197,873.03
  4. Step 4: Simplify right side
    576,691.81x = 171,172,298,771.93
  5. Step 5: Solve for x
    x = 171,172,298,771.93/576,691.81
  6. Step 6: Final answer
    x = 296,817.64

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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.