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Finding the Fourth Proportional to 340,366.80, 510,550.20 and 234,078.60

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Solution

The fourth proportional to 340,366.80, 510,550.20 and 234,078.60 is: 351,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,366.80 : 510,550.20 = 234,078.60 : x
  2. Step 2: Convert to fraction form
    340,366.80/510,550.20 = 234,078.60/x
  3. Step 3: Cross multiply
    340,366.80x = 510,550.20 × 234,078.60
  4. Step 4: Simplify right side
    340,366.80x = 119,508,876,045.72
  5. Step 5: Solve for x
    x = 119,508,876,045.72/340,366.80
  6. Step 6: Final answer
    x = 351,117.90

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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.