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Finding the Fourth Proportional to 822,820.11, 1,135,500.44 and 483,294.03

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Solution

The fourth proportional to 822,820.11, 1,135,500.44 and 483,294.03 is: 666,950.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,820.11 : 1,135,500.44 = 483,294.03 : x
  2. Step 2: Convert to fraction form
    822,820.11/1,135,500.44 = 483,294.03/x
  3. Step 3: Cross multiply
    822,820.11x = 1,135,500.44 × 483,294.03
  4. Step 4: Simplify right side
    822,820.11x = 548,780,581,297.90
  5. Step 5: Solve for x
    x = 548,780,581,297.90/822,820.11
  6. Step 6: Final answer
    x = 666,950.86

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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.