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Finding the Fourth Proportional to 492,232.78, 679,281.22 and 265,878.28

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Solution

The fourth proportional to 492,232.78, 679,281.22 and 265,878.28 is: 366,912.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,232.78 : 679,281.22 = 265,878.28 : x
  2. Step 2: Convert to fraction form
    492,232.78/679,281.22 = 265,878.28/x
  3. Step 3: Cross multiply
    492,232.78x = 679,281.22 × 265,878.28
  4. Step 4: Simplify right side
    492,232.78x = 180,606,122,409.90
  5. Step 5: Solve for x
    x = 180,606,122,409.90/492,232.78
  6. Step 6: Final answer
    x = 366,912.02

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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.