Home / 648,203.20-973,179.60-515,233.60

Finding the Fourth Proportional to 648,203.20, 973,179.60 and 515,233.60

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Solution

The fourth proportional to 648,203.20, 973,179.60 and 515,233.60 is: 773,545.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,203.20 : 973,179.60 = 515,233.60 : x
  2. Step 2: Convert to fraction form
    648,203.20/973,179.60 = 515,233.60/x
  3. Step 3: Cross multiply
    648,203.20x = 973,179.60 × 515,233.60
  4. Step 4: Simplify right side
    648,203.20x = 501,414,828,754.56
  5. Step 5: Solve for x
    x = 501,414,828,754.56/648,203.20
  6. Step 6: Final answer
    x = 773,545.75

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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.