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Finding the Fourth Proportional to 288,611.10, 398,025.43 and 181,191.14

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Solution

The fourth proportional to 288,611.10, 398,025.43 and 181,191.14 is: 249,881.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,611.10 : 398,025.43 = 181,191.14 : x
  2. Step 2: Convert to fraction form
    288,611.10/398,025.43 = 181,191.14/x
  3. Step 3: Cross multiply
    288,611.10x = 398,025.43 × 181,191.14
  4. Step 4: Simplify right side
    288,611.10x = 72,118,681,410.69
  5. Step 5: Solve for x
    x = 72,118,681,410.69/288,611.10
  6. Step 6: Final answer
    x = 249,881.87

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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.