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Finding the Fourth Proportional to 325,639.70, 487,618.31 and 224,749.16

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Solution

The fourth proportional to 325,639.70, 487,618.31 and 224,749.16 is: 336,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,639.70 : 487,618.31 = 224,749.16 : x
  2. Step 2: Convert to fraction form
    325,639.70/487,618.31 = 224,749.16/x
  3. Step 3: Cross multiply
    325,639.70x = 487,618.31 × 224,749.16
  4. Step 4: Simplify right side
    325,639.70x = 109,591,804,449.37
  5. Step 5: Solve for x
    x = 109,591,804,449.37/325,639.70
  6. Step 6: Final answer
    x = 336,543.13

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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.