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Finding the Fourth Proportional to 619,837.60, 929,756.40 and 582,512.80

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Solution

The fourth proportional to 619,837.60, 929,756.40 and 582,512.80 is: 873,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,837.60 : 929,756.40 = 582,512.80 : x
  2. Step 2: Convert to fraction form
    619,837.60/929,756.40 = 582,512.80/x
  3. Step 3: Cross multiply
    619,837.60x = 929,756.40 × 582,512.80
  4. Step 4: Simplify right side
    619,837.60x = 541,595,003,881.92
  5. Step 5: Solve for x
    x = 541,595,003,881.92/619,837.60
  6. Step 6: Final answer
    x = 873,769.20

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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.