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Finding the Fourth Proportional to 550,556.90, 760,035.60 and 369,202.63

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Solution

The fourth proportional to 550,556.90, 760,035.60 and 369,202.63 is: 509,678.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,556.90 : 760,035.60 = 369,202.63 : x
  2. Step 2: Convert to fraction form
    550,556.90/760,035.60 = 369,202.63/x
  3. Step 3: Cross multiply
    550,556.90x = 760,035.60 × 369,202.63
  4. Step 4: Simplify right side
    550,556.90x = 280,607,140,513.54
  5. Step 5: Solve for x
    x = 280,607,140,513.54/550,556.90
  6. Step 6: Final answer
    x = 509,678.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.