Home / 885,647.18-1,222,157.90-523,187.44

Finding the Fourth Proportional to 885,647.18, 1,222,157.90 and 523,187.44

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Solution

The fourth proportional to 885,647.18, 1,222,157.90 and 523,187.44 is: 721,977.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,647.18 : 1,222,157.90 = 523,187.44 : x
  2. Step 2: Convert to fraction form
    885,647.18/1,222,157.90 = 523,187.44/x
  3. Step 3: Cross multiply
    885,647.18x = 1,222,157.90 × 523,187.44
  4. Step 4: Simplify right side
    885,647.18x = 639,417,662,976.78
  5. Step 5: Solve for x
    x = 639,417,662,976.78/885,647.18
  6. Step 6: Final answer
    x = 721,977.87

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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.