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Finding the Fourth Proportional to 461,926.20, 647,629.80 and 461,926.20

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Solution

The fourth proportional to 461,926.20, 647,629.80 and 461,926.20 is: 647,629.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,926.20 : 647,629.80 = 461,926.20 : x
  2. Step 2: Convert to fraction form
    461,926.20/647,629.80 = 461,926.20/x
  3. Step 3: Cross multiply
    461,926.20x = 647,629.80 × 461,926.20
  4. Step 4: Simplify right side
    461,926.20x = 299,157,172,520.76
  5. Step 5: Solve for x
    x = 299,157,172,520.76/461,926.20
  6. Step 6: Final answer
    x = 647,629.80

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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.