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Finding the Fourth Proportional to 268,881.70, 403,322.55 and 264,216.10

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Solution

The fourth proportional to 268,881.70, 403,322.55 and 264,216.10 is: 396,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,881.70 : 403,322.55 = 264,216.10 : x
  2. Step 2: Convert to fraction form
    268,881.70/403,322.55 = 264,216.10/x
  3. Step 3: Cross multiply
    268,881.70x = 403,322.55 × 264,216.10
  4. Step 4: Simplify right side
    268,881.70x = 106,564,311,203.06
  5. Step 5: Solve for x
    x = 106,564,311,203.06/268,881.70
  6. Step 6: Final answer
    x = 396,324.15

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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.