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Finding the Fourth Proportional to 280,184.76, 386,684.76 and 171,352.77

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Solution

The fourth proportional to 280,184.76, 386,684.76 and 171,352.77 is: 236,485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,184.76 : 386,684.76 = 171,352.77 : x
  2. Step 2: Convert to fraction form
    280,184.76/386,684.76 = 171,352.77/x
  3. Step 3: Cross multiply
    280,184.76x = 386,684.76 × 171,352.77
  4. Step 4: Simplify right side
    280,184.76x = 66,259,504,742.79
  5. Step 5: Solve for x
    x = 66,259,504,742.79/280,184.76
  6. Step 6: Final answer
    x = 236,485.04

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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.