Home / 808,247.57-1,115,456.54-464,128.65

Finding the Fourth Proportional to 808,247.57, 1,115,456.54 and 464,128.65

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Solution

The fourth proportional to 808,247.57, 1,115,456.54 and 464,128.65 is: 640,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,247.57 : 1,115,456.54 = 464,128.65 : x
  2. Step 2: Convert to fraction form
    808,247.57/1,115,456.54 = 464,128.65/x
  3. Step 3: Cross multiply
    808,247.57x = 1,115,456.54 × 464,128.65
  4. Step 4: Simplify right side
    808,247.57x = 517,715,335,723.23
  5. Step 5: Solve for x
    x = 517,715,335,723.23/808,247.57
  6. Step 6: Final answer
    x = 640,540.54

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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.