Home / 813,809.56-1,123,051.74-451,233.64

Finding the Fourth Proportional to 813,809.56, 1,123,051.74 and 451,233.64

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Solution

The fourth proportional to 813,809.56, 1,123,051.74 and 451,233.64 is: 622,699.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,809.56 : 1,123,051.74 = 451,233.64 : x
  2. Step 2: Convert to fraction form
    813,809.56/1,123,051.74 = 451,233.64/x
  3. Step 3: Cross multiply
    813,809.56x = 1,123,051.74 × 451,233.64
  4. Step 4: Simplify right side
    813,809.56x = 506,758,724,548.53
  5. Step 5: Solve for x
    x = 506,758,724,548.53/813,809.56
  6. Step 6: Final answer
    x = 622,699.40

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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.