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Finding the Fourth Proportional to 529,574.09, 730,794.33 and 303,175.85

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Solution

The fourth proportional to 529,574.09, 730,794.33 and 303,175.85 is: 418,372.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,574.09 : 730,794.33 = 303,175.85 : x
  2. Step 2: Convert to fraction form
    529,574.09/730,794.33 = 303,175.85/x
  3. Step 3: Cross multiply
    529,574.09x = 730,794.33 × 303,175.85
  4. Step 4: Simplify right side
    529,574.09x = 221,559,188,518.96
  5. Step 5: Solve for x
    x = 221,559,188,518.96/529,574.09
  6. Step 6: Final answer
    x = 418,372.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.