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Finding the Fourth Proportional to 529,858.26, 731,174.85 and 303,518.34

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Solution

The fourth proportional to 529,858.26, 731,174.85 and 303,518.34 is: 418,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,858.26 : 731,174.85 = 303,518.34 : x
  2. Step 2: Convert to fraction form
    529,858.26/731,174.85 = 303,518.34/x
  3. Step 3: Cross multiply
    529,858.26x = 731,174.85 × 303,518.34
  4. Step 4: Simplify right side
    529,858.26x = 221,924,976,721.75
  5. Step 5: Solve for x
    x = 221,924,976,721.75/529,858.26
  6. Step 6: Final answer
    x = 418,838.38

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1.5x scale

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.