Home / 621,279.48-852,104.67-613,918.20

Finding the Fourth Proportional to 621,279.48, 852,104.67 and 613,918.20

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Solution

The fourth proportional to 621,279.48, 852,104.67 and 613,918.20 is: 842,008.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,279.48 : 852,104.67 = 613,918.20 : x
  2. Step 2: Convert to fraction form
    621,279.48/852,104.67 = 613,918.20/x
  3. Step 3: Cross multiply
    621,279.48x = 852,104.67 × 613,918.20
  4. Step 4: Simplify right side
    621,279.48x = 523,122,565,217.99
  5. Step 5: Solve for x
    x = 523,122,565,217.99/621,279.48
  6. Step 6: Final answer
    x = 842,008.44

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.