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Finding the Fourth Proportional to 353,114.60, 529,671.90 and 324,084.20

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Solution

The fourth proportional to 353,114.60, 529,671.90 and 324,084.20 is: 486,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,114.60 : 529,671.90 = 324,084.20 : x
  2. Step 2: Convert to fraction form
    353,114.60/529,671.90 = 324,084.20/x
  3. Step 3: Cross multiply
    353,114.60x = 529,671.90 × 324,084.20
  4. Step 4: Simplify right side
    353,114.60x = 171,658,293,973.98
  5. Step 5: Solve for x
    x = 171,658,293,973.98/353,114.60
  6. Step 6: Final answer
    x = 486,126.30

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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.