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Finding the Fourth Proportional to 483,143.84, 724,015.76 and 272,333.12

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Solution

The fourth proportional to 483,143.84, 724,015.76 and 272,333.12 is: 408,105.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,143.84 : 724,015.76 = 272,333.12 : x
  2. Step 2: Convert to fraction form
    483,143.84/724,015.76 = 272,333.12/x
  3. Step 3: Cross multiply
    483,143.84x = 724,015.76 × 272,333.12
  4. Step 4: Simplify right side
    483,143.84x = 197,173,470,849.97
  5. Step 5: Solve for x
    x = 197,173,470,849.97/483,143.84
  6. Step 6: Final answer
    x = 408,105.11

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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.