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Finding the Fourth Proportional to 481,458.60, 723,743.10 and 342,181.80

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Solution

The fourth proportional to 481,458.60, 723,743.10 and 342,181.80 is: 514,378.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,458.60 : 723,743.10 = 342,181.80 : x
  2. Step 2: Convert to fraction form
    481,458.60/723,743.10 = 342,181.80/x
  3. Step 3: Cross multiply
    481,458.60x = 723,743.10 × 342,181.80
  4. Step 4: Simplify right side
    481,458.60x = 247,651,716,695.58
  5. Step 5: Solve for x
    x = 247,651,716,695.58/481,458.60
  6. Step 6: Final answer
    x = 514,378.01

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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.