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Finding the Fourth Proportional to 413,737.60, 620,606.40 and 164,419.60

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Solution

The fourth proportional to 413,737.60, 620,606.40 and 164,419.60 is: 246,629.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,737.60 : 620,606.40 = 164,419.60 : x
  2. Step 2: Convert to fraction form
    413,737.60/620,606.40 = 164,419.60/x
  3. Step 3: Cross multiply
    413,737.60x = 620,606.40 × 164,419.60
  4. Step 4: Simplify right side
    413,737.60x = 102,039,856,045.44
  5. Step 5: Solve for x
    x = 102,039,856,045.44/413,737.60
  6. Step 6: Final answer
    x = 246,629.40

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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.