Home / 813,872.22-1,123,088.91-451,282.65

Finding the Fourth Proportional to 813,872.22, 1,123,088.91 and 451,282.65

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Solution

The fourth proportional to 813,872.22, 1,123,088.91 and 451,282.65 is: 622,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,872.22 : 1,123,088.91 = 451,282.65 : x
  2. Step 2: Convert to fraction form
    813,872.22/1,123,088.91 = 451,282.65/x
  3. Step 3: Cross multiply
    813,872.22x = 1,123,088.91 × 451,282.65
  4. Step 4: Simplify right side
    813,872.22x = 506,830,539,490.41
  5. Step 5: Solve for x
    x = 506,830,539,490.41/813,872.22
  6. Step 6: Final answer
    x = 622,739.70

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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.