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Finding the Fourth Proportional to 468,428.70, 703,037.61 and 202,390.86

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Solution

The fourth proportional to 468,428.70, 703,037.61 and 202,390.86 is: 303,756.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,428.70 : 703,037.61 = 202,390.86 : x
  2. Step 2: Convert to fraction form
    468,428.70/703,037.61 = 202,390.86/x
  3. Step 3: Cross multiply
    468,428.70x = 703,037.61 × 202,390.86
  4. Step 4: Simplify right side
    468,428.70x = 142,288,386,500.25
  5. Step 5: Solve for x
    x = 142,288,386,500.25/468,428.70
  6. Step 6: Final answer
    x = 303,756.76

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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.