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Finding the Fourth Proportional to 271,921.40, 407,882.10 and 246,989.60

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Solution

The fourth proportional to 271,921.40, 407,882.10 and 246,989.60 is: 370,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,921.40 : 407,882.10 = 246,989.60 : x
  2. Step 2: Convert to fraction form
    271,921.40/407,882.10 = 246,989.60/x
  3. Step 3: Cross multiply
    271,921.40x = 407,882.10 × 246,989.60
  4. Step 4: Simplify right side
    271,921.40x = 100,742,636,726.16
  5. Step 5: Solve for x
    x = 100,742,636,726.16/271,921.40
  6. Step 6: Final answer
    x = 370,484.40

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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.