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Finding the Fourth Proportional to 335,291.62, 462,873.78 and 258,638.63

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Solution

The fourth proportional to 335,291.62, 462,873.78 and 258,638.63 is: 357,053.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,291.62 : 462,873.78 = 258,638.63 : x
  2. Step 2: Convert to fraction form
    335,291.62/462,873.78 = 258,638.63/x
  3. Step 3: Cross multiply
    335,291.62x = 462,873.78 × 258,638.63
  4. Step 4: Simplify right side
    335,291.62x = 119,717,040,322.12
  5. Step 5: Solve for x
    x = 119,717,040,322.12/335,291.62
  6. Step 6: Final answer
    x = 357,053.48

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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.