Home / 813,845.16-1,123,108.74-451,294.56

Finding the Fourth Proportional to 813,845.16, 1,123,108.74 and 451,294.56

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Solution

The fourth proportional to 813,845.16, 1,123,108.74 and 451,294.56 is: 622,787.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,845.16 : 1,123,108.74 = 451,294.56 : x
  2. Step 2: Convert to fraction form
    813,845.16/1,123,108.74 = 451,294.56/x
  3. Step 3: Cross multiply
    813,845.16x = 1,123,108.74 × 451,294.56
  4. Step 4: Simplify right side
    813,845.16x = 506,852,864,650.45
  5. Step 5: Solve for x
    x = 506,852,864,650.45/813,845.16
  6. Step 6: Final answer
    x = 622,787.83

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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.