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Finding the Fourth Proportional to 353,241.80, 529,085.10 and 313,843.40

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Solution

The fourth proportional to 353,241.80, 529,085.10 and 313,843.40 is: 470,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,241.80 : 529,085.10 = 313,843.40 : x
  2. Step 2: Convert to fraction form
    353,241.80/529,085.10 = 313,843.40/x
  3. Step 3: Cross multiply
    353,241.80x = 529,085.10 × 313,843.40
  4. Step 4: Simplify right side
    353,241.80x = 166,049,866,673.34
  5. Step 5: Solve for x
    x = 166,049,866,673.34/353,241.80
  6. Step 6: Final answer
    x = 470,074.23

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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.