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Finding the Fourth Proportional to 366,929.20, 513,078.80 and 366,929.20

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Solution

The fourth proportional to 366,929.20, 513,078.80 and 366,929.20 is: 513,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,929.20 : 513,078.80 = 366,929.20 : x
  2. Step 2: Convert to fraction form
    366,929.20/513,078.80 = 366,929.20/x
  3. Step 3: Cross multiply
    366,929.20x = 513,078.80 × 366,929.20
  4. Step 4: Simplify right side
    366,929.20x = 188,263,593,620.96
  5. Step 5: Solve for x
    x = 188,263,593,620.96/366,929.20
  6. Step 6: Final answer
    x = 513,078.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.