Home / 813,845.66-1,123,109.43-451,295.06

Finding the Fourth Proportional to 813,845.66, 1,123,109.43 and 451,295.06

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Solution

The fourth proportional to 813,845.66, 1,123,109.43 and 451,295.06 is: 622,788.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,845.66 : 1,123,109.43 = 451,295.06 : x
  2. Step 2: Convert to fraction form
    813,845.66/1,123,109.43 = 451,295.06/x
  3. Step 3: Cross multiply
    813,845.66x = 1,123,109.43 × 451,295.06
  4. Step 4: Simplify right side
    813,845.66x = 506,853,737,598.42
  5. Step 5: Solve for x
    x = 506,853,737,598.42/813,845.66
  6. Step 6: Final answer
    x = 622,788.52

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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.