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Finding the Fourth Proportional to 288,847.89, 398,475.77 and 186,906.24

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Solution

The fourth proportional to 288,847.89, 398,475.77 and 186,906.24 is: 257,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,847.89 : 398,475.77 = 186,906.24 : x
  2. Step 2: Convert to fraction form
    288,847.89/398,475.77 = 186,906.24/x
  3. Step 3: Cross multiply
    288,847.89x = 398,475.77 × 186,906.24
  4. Step 4: Simplify right side
    288,847.89x = 74,477,606,967.27
  5. Step 5: Solve for x
    x = 74,477,606,967.27/288,847.89
  6. Step 6: Final answer
    x = 257,843.69

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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.