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Finding the Fourth Proportional to 418,058.56, 576,928.42 and 236,808.12

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Solution

The fourth proportional to 418,058.56, 576,928.42 and 236,808.12 is: 326,799.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,058.56 : 576,928.42 = 236,808.12 : x
  2. Step 2: Convert to fraction form
    418,058.56/576,928.42 = 236,808.12/x
  3. Step 3: Cross multiply
    418,058.56x = 576,928.42 × 236,808.12
  4. Step 4: Simplify right side
    418,058.56x = 136,621,334,514.77
  5. Step 5: Solve for x
    x = 136,621,334,514.77/418,058.56
  6. Step 6: Final answer
    x = 326,799.51

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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.