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Finding the Fourth Proportional to 404,496.40, 606,744.60 and 379,564.60

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Solution

The fourth proportional to 404,496.40, 606,744.60 and 379,564.60 is: 569,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,496.40 : 606,744.60 = 379,564.60 : x
  2. Step 2: Convert to fraction form
    404,496.40/606,744.60 = 379,564.60/x
  3. Step 3: Cross multiply
    404,496.40x = 606,744.60 × 379,564.60
  4. Step 4: Simplify right side
    404,496.40x = 230,298,771,401.16
  5. Step 5: Solve for x
    x = 230,298,771,401.16/404,496.40
  6. Step 6: Final answer
    x = 569,346.90

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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.