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Finding the Fourth Proportional to 483,311.76, 725,428.92 and 296,687.76

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Solution

The fourth proportional to 483,311.76, 725,428.92 and 296,687.76 is: 445,314.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,311.76 : 725,428.92 = 296,687.76 : x
  2. Step 2: Convert to fraction form
    483,311.76/725,428.92 = 296,687.76/x
  3. Step 3: Cross multiply
    483,311.76x = 725,428.92 × 296,687.76
  4. Step 4: Simplify right side
    483,311.76x = 215,225,881,314.02
  5. Step 5: Solve for x
    x = 215,225,881,314.02/483,311.76
  6. Step 6: Final answer
    x = 445,314.80

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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.