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Finding the Fourth Proportional to 576,674.12, 865,034.75 and 197,855.35

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Solution

The fourth proportional to 576,674.12, 865,034.75 and 197,855.35 is: 296,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,674.12 : 865,034.75 = 197,855.35 : x
  2. Step 2: Convert to fraction form
    576,674.12/865,034.75 = 197,855.35/x
  3. Step 3: Cross multiply
    576,674.12x = 865,034.75 × 197,855.35
  4. Step 4: Simplify right side
    576,674.12x = 171,151,747,908.96
  5. Step 5: Solve for x
    x = 171,151,747,908.96/576,674.12
  6. Step 6: Final answer
    x = 296,791.10

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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.