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Finding the Fourth Proportional to 622,197.71, 933,658.78 and 262,345.98

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Solution

The fourth proportional to 622,197.71, 933,658.78 and 262,345.98 is: 393,671.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,197.71 : 933,658.78 = 262,345.98 : x
  2. Step 2: Convert to fraction form
    622,197.71/933,658.78 = 262,345.98/x
  3. Step 3: Cross multiply
    622,197.71x = 933,658.78 × 262,345.98
  4. Step 4: Simplify right side
    622,197.71x = 244,941,627,624.70
  5. Step 5: Solve for x
    x = 244,941,627,624.70/622,197.71
  6. Step 6: Final answer
    x = 393,671.70

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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.