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Finding the Fourth Proportional to 533,438.63, 736,212.56 and 349,831.61

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Solution

The fourth proportional to 533,438.63, 736,212.56 and 349,831.61 is: 482,811.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,438.63 : 736,212.56 = 349,831.61 : x
  2. Step 2: Convert to fraction form
    533,438.63/736,212.56 = 349,831.61/x
  3. Step 3: Cross multiply
    533,438.63x = 736,212.56 × 349,831.61
  4. Step 4: Simplify right side
    533,438.63x = 257,550,425,167.02
  5. Step 5: Solve for x
    x = 257,550,425,167.02/533,438.63
  6. Step 6: Final answer
    x = 482,811.73

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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.