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Finding the Fourth Proportional to 262,477.05, 393,778.14 and 84,984.11

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Solution

The fourth proportional to 262,477.05, 393,778.14 and 84,984.11 is: 127,496.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,477.05 : 393,778.14 = 84,984.11 : x
  2. Step 2: Convert to fraction form
    262,477.05/393,778.14 = 84,984.11/x
  3. Step 3: Cross multiply
    262,477.05x = 393,778.14 × 84,984.11
  4. Step 4: Simplify right side
    262,477.05x = 33,464,882,796.46
  5. Step 5: Solve for x
    x = 33,464,882,796.46/262,477.05
  6. Step 6: Final answer
    x = 127,496.42

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1.5x scale

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.