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Finding the Fourth Proportional to 288,610.35, 398,024.40 and 181,190.40

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Solution

The fourth proportional to 288,610.35, 398,024.40 and 181,190.40 is: 249,880.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,610.35 : 398,024.40 = 181,190.40 : x
  2. Step 2: Convert to fraction form
    288,610.35/398,024.40 = 181,190.40/x
  3. Step 3: Cross multiply
    288,610.35x = 398,024.40 × 181,190.40
  4. Step 4: Simplify right side
    288,610.35x = 72,118,200,245.76
  5. Step 5: Solve for x
    x = 72,118,200,245.76/288,610.35
  6. Step 6: Final answer
    x = 249,880.85

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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.