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Finding the Fourth Proportional to 289,496.84, 399,505.37 and 162,173.34

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Solution

The fourth proportional to 289,496.84, 399,505.37 and 162,173.34 is: 223,799.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,496.84 : 399,505.37 = 162,173.34 : x
  2. Step 2: Convert to fraction form
    289,496.84/399,505.37 = 162,173.34/x
  3. Step 3: Cross multiply
    289,496.84x = 399,505.37 × 162,173.34
  4. Step 4: Simplify right side
    289,496.84x = 64,789,119,389.97
  5. Step 5: Solve for x
    x = 64,789,119,389.97/289,496.84
  6. Step 6: Final answer
    x = 223,799.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.