Home / 813,901.34-1,123,129.04-451,311.86

Finding the Fourth Proportional to 813,901.34, 1,123,129.04 and 451,311.86

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Solution

The fourth proportional to 813,901.34, 1,123,129.04 and 451,311.86 is: 622,779.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,901.34 : 1,123,129.04 = 451,311.86 : x
  2. Step 2: Convert to fraction form
    813,901.34/1,123,129.04 = 451,311.86/x
  3. Step 3: Cross multiply
    813,901.34x = 1,123,129.04 × 451,311.86
  4. Step 4: Simplify right side
    813,901.34x = 506,881,456,062.41
  5. Step 5: Solve for x
    x = 506,881,456,062.41/813,901.34
  6. Step 6: Final answer
    x = 622,779.97

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Double scale
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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.