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Finding the Fourth Proportional to 576,378.54, 864,281.82 and 197,191.98

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Solution

The fourth proportional to 576,378.54, 864,281.82 and 197,191.98 is: 295,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,378.54 : 864,281.82 = 197,191.98 : x
  2. Step 2: Convert to fraction form
    576,378.54/864,281.82 = 197,191.98/x
  3. Step 3: Cross multiply
    576,378.54x = 864,281.82 × 197,191.98
  4. Step 4: Simplify right side
    576,378.54x = 170,429,443,363.80
  5. Step 5: Solve for x
    x = 170,429,443,363.80/576,378.54
  6. Step 6: Final answer
    x = 295,690.13

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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.