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Finding the Fourth Proportional to 703,658.72, 1,055,617.86 and 230,370.32

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Solution

The fourth proportional to 703,658.72, 1,055,617.86 and 230,370.32 is: 345,597.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,658.72 : 1,055,617.86 = 230,370.32 : x
  2. Step 2: Convert to fraction form
    703,658.72/1,055,617.86 = 230,370.32/x
  3. Step 3: Cross multiply
    703,658.72x = 1,055,617.86 × 230,370.32
  4. Step 4: Simplify right side
    703,658.72x = 243,183,024,205.92
  5. Step 5: Solve for x
    x = 243,183,024,205.92/703,658.72
  6. Step 6: Final answer
    x = 345,597.97

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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.