Home / 398,583.92-597,878.04-118,103.60

Finding the Fourth Proportional to 398,583.92, 597,878.04 and 118,103.60

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Solution

The fourth proportional to 398,583.92, 597,878.04 and 118,103.60 is: 177,156.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,583.92 : 597,878.04 = 118,103.60 : x
  2. Step 2: Convert to fraction form
    398,583.92/597,878.04 = 118,103.60/x
  3. Step 3: Cross multiply
    398,583.92x = 597,878.04 × 118,103.60
  4. Step 4: Simplify right side
    398,583.92x = 70,611,548,884.94
  5. Step 5: Solve for x
    x = 70,611,548,884.94/398,583.92
  6. Step 6: Final answer
    x = 177,156.04

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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.