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Finding the Fourth Proportional to 340,777.96, 470,254.40 and 187,815.68

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Solution

The fourth proportional to 340,777.96, 470,254.40 and 187,815.68 is: 259,175.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,777.96 : 470,254.40 = 187,815.68 : x
  2. Step 2: Convert to fraction form
    340,777.96/470,254.40 = 187,815.68/x
  3. Step 3: Cross multiply
    340,777.96x = 470,254.40 × 187,815.68
  4. Step 4: Simplify right side
    340,777.96x = 88,321,150,849.86
  5. Step 5: Solve for x
    x = 88,321,150,849.86/340,777.96
  6. Step 6: Final answer
    x = 259,175.07

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1.5x scale

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.