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Finding the Fourth Proportional to 576,672.50, 865,032.30 and 197,853.72

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Solution

The fourth proportional to 576,672.50, 865,032.30 and 197,853.72 is: 296,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,672.50 : 865,032.30 = 197,853.72 : x
  2. Step 2: Convert to fraction form
    576,672.50/865,032.30 = 197,853.72/x
  3. Step 3: Cross multiply
    576,672.50x = 865,032.30 × 197,853.72
  4. Step 4: Simplify right side
    576,672.50x = 171,149,858,475.16
  5. Step 5: Solve for x
    x = 171,149,858,475.16/576,672.50
  6. Step 6: Final answer
    x = 296,788.66

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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.