Home / 709,015.48-1,062,636.26-354,128.56

Finding the Fourth Proportional to 709,015.48, 1,062,636.26 and 354,128.56

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Solution

The fourth proportional to 709,015.48, 1,062,636.26 and 354,128.56 is: 530,749.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,015.48 : 1,062,636.26 = 354,128.56 : x
  2. Step 2: Convert to fraction form
    709,015.48/1,062,636.26 = 354,128.56/x
  3. Step 3: Cross multiply
    709,015.48x = 1,062,636.26 × 354,128.56
  4. Step 4: Simplify right side
    709,015.48x = 376,309,848,557.59
  5. Step 5: Solve for x
    x = 376,309,848,557.59/709,015.48
  6. Step 6: Final answer
    x = 530,749.83

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.