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Finding the Fourth Proportional to 522,811.20, 784,200.60 and 148,834.20

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Solution

The fourth proportional to 522,811.20, 784,200.60 and 148,834.20 is: 223,246.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,811.20 : 784,200.60 = 148,834.20 : x
  2. Step 2: Convert to fraction form
    522,811.20/784,200.60 = 148,834.20/x
  3. Step 3: Cross multiply
    522,811.20x = 784,200.60 × 148,834.20
  4. Step 4: Simplify right side
    522,811.20x = 116,715,868,940.52
  5. Step 5: Solve for x
    x = 116,715,868,940.52/522,811.20
  6. Step 6: Final answer
    x = 223,246.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.