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Finding the Fourth Proportional to 367,627.40, 515,378.20 and 367,627.40

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Solution

The fourth proportional to 367,627.40, 515,378.20 and 367,627.40 is: 515,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,627.40 : 515,378.20 = 367,627.40 : x
  2. Step 2: Convert to fraction form
    367,627.40/515,378.20 = 367,627.40/x
  3. Step 3: Cross multiply
    367,627.40x = 515,378.20 × 367,627.40
  4. Step 4: Simplify right side
    367,627.40x = 189,467,147,682.68
  5. Step 5: Solve for x
    x = 189,467,147,682.68/367,627.40
  6. Step 6: Final answer
    x = 515,378.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.