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Finding the Fourth Proportional to 492,245.48, 679,299.06 and 265,891

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Solution

The fourth proportional to 492,245.48, 679,299.06 and 265,891 is: 366,929.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,245.48 : 679,299.06 = 265,891 : x
  2. Step 2: Convert to fraction form
    492,245.48/679,299.06 = 265,891/x
  3. Step 3: Cross multiply
    492,245.48x = 679,299.06 × 265,891
  4. Step 4: Simplify right side
    492,245.48x = 180,619,506,362.46
  5. Step 5: Solve for x
    x = 180,619,506,362.46/492,245.48
  6. Step 6: Final answer
    x = 366,929.74

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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.