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Finding the Fourth Proportional to 432,778.52, 648,587.44 and 336,831.61

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Solution

The fourth proportional to 432,778.52, 648,587.44 and 336,831.61 is: 504,795.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,778.52 : 648,587.44 = 336,831.61 : x
  2. Step 2: Convert to fraction form
    432,778.52/648,587.44 = 336,831.61/x
  3. Step 3: Cross multiply
    432,778.52x = 648,587.44 × 336,831.61
  4. Step 4: Simplify right side
    432,778.52x = 218,464,751,640.98
  5. Step 5: Solve for x
    x = 218,464,751,640.98/432,778.52
  6. Step 6: Final answer
    x = 504,795.74

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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.