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Finding the Fourth Proportional to 612,620.82, 918,810.11 and 582,240.56

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Solution

The fourth proportional to 612,620.82, 918,810.11 and 582,240.56 is: 873,245.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,620.82 : 918,810.11 = 582,240.56 : x
  2. Step 2: Convert to fraction form
    612,620.82/918,810.11 = 582,240.56/x
  3. Step 3: Cross multiply
    612,620.82x = 918,810.11 × 582,240.56
  4. Step 4: Simplify right side
    612,620.82x = 534,968,512,980.06
  5. Step 5: Solve for x
    x = 534,968,512,980.06/612,620.82
  6. Step 6: Final answer
    x = 873,245.73

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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.