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Finding the Fourth Proportional to 451,690.93, 623,350.92 and 247,750.45

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Solution

The fourth proportional to 451,690.93, 623,350.92 and 247,750.45 is: 341,905.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,690.93 : 623,350.92 = 247,750.45 : x
  2. Step 2: Convert to fraction form
    451,690.93/623,350.92 = 247,750.45/x
  3. Step 3: Cross multiply
    451,690.93x = 623,350.92 × 247,750.45
  4. Step 4: Simplify right side
    451,690.93x = 154,435,470,308.60
  5. Step 5: Solve for x
    x = 154,435,470,308.60/451,690.93
  6. Step 6: Final answer
    x = 341,905.18

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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.