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Finding the Fourth Proportional to 366,978.45, 550,467.68 and 307,929.45

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Solution

The fourth proportional to 366,978.45, 550,467.68 and 307,929.45 is: 461,894.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,978.45 : 550,467.68 = 307,929.45 : x
  2. Step 2: Convert to fraction form
    366,978.45/550,467.68 = 307,929.45/x
  3. Step 3: Cross multiply
    366,978.45x = 550,467.68 × 307,929.45
  4. Step 4: Simplify right side
    366,978.45x = 169,505,209,945.18
  5. Step 5: Solve for x
    x = 169,505,209,945.18/366,978.45
  6. Step 6: Final answer
    x = 461,894.18

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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.