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Finding the Fourth Proportional to 613,645.31, 919,213.11 and 500,197.43

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Solution

The fourth proportional to 613,645.31, 919,213.11 and 500,197.43 is: 749,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,645.31 : 919,213.11 = 500,197.43 : x
  2. Step 2: Convert to fraction form
    613,645.31/919,213.11 = 500,197.43/x
  3. Step 3: Cross multiply
    613,645.31x = 919,213.11 × 500,197.43
  4. Step 4: Simplify right side
    613,645.31x = 459,788,030,648.24
  5. Step 5: Solve for x
    x = 459,788,030,648.24/613,645.31
  6. Step 6: Final answer
    x = 749,273.28

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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.