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Finding the Fourth Proportional to 400,989.78, 601,577.58 and 116,687.04

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Solution

The fourth proportional to 400,989.78, 601,577.58 and 116,687.04 is: 175,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,989.78 : 601,577.58 = 116,687.04 : x
  2. Step 2: Convert to fraction form
    400,989.78/601,577.58 = 116,687.04/x
  3. Step 3: Cross multiply
    400,989.78x = 601,577.58 × 116,687.04
  4. Step 4: Simplify right side
    400,989.78x = 70,196,307,140.56
  5. Step 5: Solve for x
    x = 70,196,307,140.56/400,989.78
  6. Step 6: Final answer
    x = 175,057.60

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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.