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Finding the Fourth Proportional to 353,090.70, 529,636.05 and 327,170.70

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Solution

The fourth proportional to 353,090.70, 529,636.05 and 327,170.70 is: 490,756.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,090.70 : 529,636.05 = 327,170.70 : x
  2. Step 2: Convert to fraction form
    353,090.70/529,636.05 = 327,170.70/x
  3. Step 3: Cross multiply
    353,090.70x = 529,636.05 × 327,170.70
  4. Step 4: Simplify right side
    353,090.70x = 173,281,397,223.74
  5. Step 5: Solve for x
    x = 173,281,397,223.74/353,090.70
  6. Step 6: Final answer
    x = 490,756.05

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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.