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Finding the Fourth Proportional to 415,466.48, 573,384.22 and 245,755.28

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Solution

The fourth proportional to 415,466.48, 573,384.22 and 245,755.28 is: 339,166.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,466.48 : 573,384.22 = 245,755.28 : x
  2. Step 2: Convert to fraction form
    415,466.48/573,384.22 = 245,755.28/x
  3. Step 3: Cross multiply
    415,466.48x = 573,384.22 × 245,755.28
  4. Step 4: Simplify right side
    415,466.48x = 140,912,199,533.68
  5. Step 5: Solve for x
    x = 140,912,199,533.68/415,466.48
  6. Step 6: Final answer
    x = 339,166.23

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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.