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Finding the Fourth Proportional to 325,848.40, 488,772.60 and 320,599.60

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Solution

The fourth proportional to 325,848.40, 488,772.60 and 320,599.60 is: 480,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,848.40 : 488,772.60 = 320,599.60 : x
  2. Step 2: Convert to fraction form
    325,848.40/488,772.60 = 320,599.60/x
  3. Step 3: Cross multiply
    325,848.40x = 488,772.60 × 320,599.60
  4. Step 4: Simplify right side
    325,848.40x = 156,700,300,050.96
  5. Step 5: Solve for x
    x = 156,700,300,050.96/325,848.40
  6. Step 6: Final answer
    x = 480,899.40

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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.