Home / 628,801.62-867,964.94-374,147.34

Finding the Fourth Proportional to 628,801.62, 867,964.94 and 374,147.34

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Solution

The fourth proportional to 628,801.62, 867,964.94 and 374,147.34 is: 516,453.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,801.62 : 867,964.94 = 374,147.34 : x
  2. Step 2: Convert to fraction form
    628,801.62/867,964.94 = 374,147.34/x
  3. Step 3: Cross multiply
    628,801.62x = 867,964.94 × 374,147.34
  4. Step 4: Simplify right side
    628,801.62x = 324,746,773,514.26
  5. Step 5: Solve for x
    x = 324,746,773,514.26/628,801.62
  6. Step 6: Final answer
    x = 516,453.46

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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.