Home / 854,309.43-1,178,997.53-491,724.27

Finding the Fourth Proportional to 854,309.43, 1,178,997.53 and 491,724.27

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Solution

The fourth proportional to 854,309.43, 1,178,997.53 and 491,724.27 is: 678,608.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,309.43 : 1,178,997.53 = 491,724.27 : x
  2. Step 2: Convert to fraction form
    854,309.43/1,178,997.53 = 491,724.27/x
  3. Step 3: Cross multiply
    854,309.43x = 1,178,997.53 × 491,724.27
  4. Step 4: Simplify right side
    854,309.43x = 579,741,697,312.43
  5. Step 5: Solve for x
    x = 579,741,697,312.43/854,309.43
  6. Step 6: Final answer
    x = 678,608.57

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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.