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Finding the Fourth Proportional to 507,115.20, 760,792.77 and 165,556.80

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Solution

The fourth proportional to 507,115.20, 760,792.77 and 165,556.80 is: 248,374.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,115.20 : 760,792.77 = 165,556.80 : x
  2. Step 2: Convert to fraction form
    507,115.20/760,792.77 = 165,556.80/x
  3. Step 3: Cross multiply
    507,115.20x = 760,792.77 × 165,556.80
  4. Step 4: Simplify right side
    507,115.20x = 125,954,416,464.34
  5. Step 5: Solve for x
    x = 125,954,416,464.34/507,115.20
  6. Step 6: Final answer
    x = 248,374.37

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1.5x scale

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.