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Finding the Fourth Proportional to 417,849, 576,638.40 and 236,556.24

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Solution

The fourth proportional to 417,849, 576,638.40 and 236,556.24 is: 326,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,849 : 576,638.40 = 236,556.24 : x
  2. Step 2: Convert to fraction form
    417,849/576,638.40 = 236,556.24/x
  3. Step 3: Cross multiply
    417,849x = 576,638.40 × 236,556.24
  4. Step 4: Simplify right side
    417,849x = 136,407,411,743.62
  5. Step 5: Solve for x
    x = 136,407,411,743.62/417,849
  6. Step 6: Final answer
    x = 326,451.45

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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.