Home / 813,871.72-1,123,088.22-451,282.15

Finding the Fourth Proportional to 813,871.72, 1,123,088.22 and 451,282.15

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Solution

The fourth proportional to 813,871.72, 1,123,088.22 and 451,282.15 is: 622,739.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,871.72 : 1,123,088.22 = 451,282.15 : x
  2. Step 2: Convert to fraction form
    813,871.72/1,123,088.22 = 451,282.15/x
  3. Step 3: Cross multiply
    813,871.72x = 1,123,088.22 × 451,282.15
  4. Step 4: Simplify right side
    813,871.72x = 506,829,667,965.13
  5. Step 5: Solve for x
    x = 506,829,667,965.13/813,871.72
  6. Step 6: Final answer
    x = 622,739.01

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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.