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Finding the Fourth Proportional to 469,129.07, 647,458.07 and 262,408.95

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Solution

The fourth proportional to 469,129.07, 647,458.07 and 262,408.95 is: 362,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,129.07 : 647,458.07 = 262,408.95 : x
  2. Step 2: Convert to fraction form
    469,129.07/647,458.07 = 262,408.95/x
  3. Step 3: Cross multiply
    469,129.07x = 647,458.07 × 262,408.95
  4. Step 4: Simplify right side
    469,129.07x = 169,898,792,973.75
  5. Step 5: Solve for x
    x = 169,898,792,973.75/469,129.07
  6. Step 6: Final answer
    x = 362,157.89

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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.