Home / 813,647.37-1,122,899.67-451,184.88

Finding the Fourth Proportional to 813,647.37, 1,122,899.67 and 451,184.88

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Solution

The fourth proportional to 813,647.37, 1,122,899.67 and 451,184.88 is: 622,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,647.37 : 1,122,899.67 = 451,184.88 : x
  2. Step 2: Convert to fraction form
    813,647.37/1,122,899.67 = 451,184.88/x
  3. Step 3: Cross multiply
    813,647.37x = 1,122,899.67 × 451,184.88
  4. Step 4: Simplify right side
    813,647.37x = 506,635,352,860.99
  5. Step 5: Solve for x
    x = 506,635,352,860.99/813,647.37
  6. Step 6: Final answer
    x = 622,671.90

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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.