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Finding the Fourth Proportional to 552,455.05, 762,395.84 and 326,100.55

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Solution

The fourth proportional to 552,455.05, 762,395.84 and 326,100.55 is: 450,023.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,455.05 : 762,395.84 = 326,100.55 : x
  2. Step 2: Convert to fraction form
    552,455.05/762,395.84 = 326,100.55/x
  3. Step 3: Cross multiply
    552,455.05x = 762,395.84 × 326,100.55
  4. Step 4: Simplify right side
    552,455.05x = 248,617,701,650.97
  5. Step 5: Solve for x
    x = 248,617,701,650.97/552,455.05
  6. Step 6: Final answer
    x = 450,023.41

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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.