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Finding the Fourth Proportional to 492,253, 679,309.44 and 265,898.56

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Solution

The fourth proportional to 492,253, 679,309.44 and 265,898.56 is: 366,940.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,253 : 679,309.44 = 265,898.56 : x
  2. Step 2: Convert to fraction form
    492,253/679,309.44 = 265,898.56/x
  3. Step 3: Cross multiply
    492,253x = 679,309.44 × 265,898.56
  4. Step 4: Simplify right side
    492,253x = 180,627,401,890.41
  5. Step 5: Solve for x
    x = 180,627,401,890.41/492,253
  6. Step 6: Final answer
    x = 366,940.17

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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.