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Finding the Fourth Proportional to 393,577.89, 589,992.76 and 153,845.48

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Solution

The fourth proportional to 393,577.89, 589,992.76 and 153,845.48 is: 230,622.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,577.89 : 589,992.76 = 153,845.48 : x
  2. Step 2: Convert to fraction form
    393,577.89/589,992.76 = 153,845.48/x
  3. Step 3: Cross multiply
    393,577.89x = 589,992.76 × 153,845.48
  4. Step 4: Simplify right side
    393,577.89x = 90,767,717,707.30
  5. Step 5: Solve for x
    x = 90,767,717,707.30/393,577.89
  6. Step 6: Final answer
    x = 230,622.00

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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.