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Finding the Fourth Proportional to 413,744.80, 620,924.40 and 164,605.60

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Solution

The fourth proportional to 413,744.80, 620,924.40 and 164,605.60 is: 247,030.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,744.80 : 620,924.40 = 164,605.60 : x
  2. Step 2: Convert to fraction form
    413,744.80/620,924.40 = 164,605.60/x
  3. Step 3: Cross multiply
    413,744.80x = 620,924.40 × 164,605.60
  4. Step 4: Simplify right side
    413,744.80x = 102,207,633,416.64
  5. Step 5: Solve for x
    x = 102,207,633,416.64/413,744.80
  6. Step 6: Final answer
    x = 247,030.62

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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.