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Finding the Fourth Proportional to 288,611.46, 398,025.97 and 181,191.51

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Solution

The fourth proportional to 288,611.46, 398,025.97 and 181,191.51 is: 249,882.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,611.46 : 398,025.97 = 181,191.51 : x
  2. Step 2: Convert to fraction form
    288,611.46/398,025.97 = 181,191.51/x
  3. Step 3: Cross multiply
    288,611.46x = 398,025.97 × 181,191.51
  4. Step 4: Simplify right side
    288,611.46x = 72,118,926,070.54
  5. Step 5: Solve for x
    x = 72,118,926,070.54/288,611.46
  6. Step 6: Final answer
    x = 249,882.41

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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.