Home / 921,161.70-1,383,168.15-501,257.70

Finding the Fourth Proportional to 921,161.70, 1,383,168.15 and 501,257.70

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Solution

The fourth proportional to 921,161.70, 1,383,168.15 and 501,257.70 is: 752,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,161.70 : 1,383,168.15 = 501,257.70 : x
  2. Step 2: Convert to fraction form
    921,161.70/1,383,168.15 = 501,257.70/x
  3. Step 3: Cross multiply
    921,161.70x = 1,383,168.15 × 501,257.70
  4. Step 4: Simplify right side
    921,161.70x = 693,323,685,582.26
  5. Step 5: Solve for x
    x = 693,323,685,582.26/921,161.70
  6. Step 6: Final answer
    x = 752,662.30

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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.