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Finding the Fourth Proportional to 353,259.80, 529,112.10 and 313,861.40

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Solution

The fourth proportional to 353,259.80, 529,112.10 and 313,861.40 is: 470,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,259.80 : 529,112.10 = 313,861.40 : x
  2. Step 2: Convert to fraction form
    353,259.80/529,112.10 = 313,861.40/x
  3. Step 3: Cross multiply
    353,259.80x = 529,112.10 × 313,861.40
  4. Step 4: Simplify right side
    353,259.80x = 166,067,864,462.94
  5. Step 5: Solve for x
    x = 166,067,864,462.94/353,259.80
  6. Step 6: Final answer
    x = 470,101.22

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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.