Home / 951,279.21-1,312,778.12-521,558.33

Finding the Fourth Proportional to 951,279.21, 1,312,778.12 and 521,558.33

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Solution

The fourth proportional to 951,279.21, 1,312,778.12 and 521,558.33 is: 719,757.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,279.21 : 1,312,778.12 = 521,558.33 : x
  2. Step 2: Convert to fraction form
    951,279.21/1,312,778.12 = 521,558.33/x
  3. Step 3: Cross multiply
    951,279.21x = 1,312,778.12 × 521,558.33
  4. Step 4: Simplify right side
    951,279.21x = 684,690,354,756.06
  5. Step 5: Solve for x
    x = 684,690,354,756.06/951,279.21
  6. Step 6: Final answer
    x = 719,757.51

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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.