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Finding the Fourth Proportional to 492,225.91, 679,272.16 and 265,871.41

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Solution

The fourth proportional to 492,225.91, 679,272.16 and 265,871.41 is: 366,902.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,225.91 : 679,272.16 = 265,871.41 : x
  2. Step 2: Convert to fraction form
    492,225.91/679,272.16 = 265,871.41/x
  3. Step 3: Cross multiply
    492,225.91x = 679,272.16 × 265,871.41
  4. Step 4: Simplify right side
    492,225.91x = 180,599,046,952.95
  5. Step 5: Solve for x
    x = 180,599,046,952.95/492,225.91
  6. Step 6: Final answer
    x = 366,902.76

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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.