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Finding the Fourth Proportional to 325,870.20, 488,805.30 and 236,705.40

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Solution

The fourth proportional to 325,870.20, 488,805.30 and 236,705.40 is: 355,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,870.20 : 488,805.30 = 236,705.40 : x
  2. Step 2: Convert to fraction form
    325,870.20/488,805.30 = 236,705.40/x
  3. Step 3: Cross multiply
    325,870.20x = 488,805.30 × 236,705.40
  4. Step 4: Simplify right side
    325,870.20x = 115,702,854,058.62
  5. Step 5: Solve for x
    x = 115,702,854,058.62/325,870.20
  6. Step 6: Final answer
    x = 355,058.10

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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.