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Finding the Fourth Proportional to 325,871.70, 488,807.55 and 276,664.20

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Solution

The fourth proportional to 325,871.70, 488,807.55 and 276,664.20 is: 414,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,871.70 : 488,807.55 = 276,664.20 : x
  2. Step 2: Convert to fraction form
    325,871.70/488,807.55 = 276,664.20/x
  3. Step 3: Cross multiply
    325,871.70x = 488,807.55 × 276,664.20
  4. Step 4: Simplify right side
    325,871.70x = 135,235,549,774.71
  5. Step 5: Solve for x
    x = 135,235,549,774.71/325,871.70
  6. Step 6: Final answer
    x = 414,996.30

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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.