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Finding the Fourth Proportional to 260,628.32, 391,059.12 and 149,820.32

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Solution

The fourth proportional to 260,628.32, 391,059.12 and 149,820.32 is: 224,797.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,628.32 : 391,059.12 = 149,820.32 : x
  2. Step 2: Convert to fraction form
    260,628.32/391,059.12 = 149,820.32/x
  3. Step 3: Cross multiply
    260,628.32x = 391,059.12 × 149,820.32
  4. Step 4: Simplify right side
    260,628.32x = 58,588,602,497.32
  5. Step 5: Solve for x
    x = 58,588,602,497.32/260,628.32
  6. Step 6: Final answer
    x = 224,797.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.