Home / 741,469.76-1,111,434.24-315,279.20

Finding the Fourth Proportional to 741,469.76, 1,111,434.24 and 315,279.20

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Solution

The fourth proportional to 741,469.76, 1,111,434.24 and 315,279.20 is: 472,591.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,469.76 : 1,111,434.24 = 315,279.20 : x
  2. Step 2: Convert to fraction form
    741,469.76/1,111,434.24 = 315,279.20/x
  3. Step 3: Cross multiply
    741,469.76x = 1,111,434.24 × 315,279.20
  4. Step 4: Simplify right side
    741,469.76x = 350,412,098,039.81
  5. Step 5: Solve for x
    x = 350,412,098,039.81/741,469.76
  6. Step 6: Final answer
    x = 472,591.22

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Double scale
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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.