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Finding the Fourth Proportional to 297,881.28, 411,065.76 and 163,744.32

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Solution

The fourth proportional to 297,881.28, 411,065.76 and 163,744.32 is: 225,961.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,881.28 : 411,065.76 = 163,744.32 : x
  2. Step 2: Convert to fraction form
    297,881.28/411,065.76 = 163,744.32/x
  3. Step 3: Cross multiply
    297,881.28x = 411,065.76 × 163,744.32
  4. Step 4: Simplify right side
    297,881.28x = 67,309,683,346.48
  5. Step 5: Solve for x
    x = 67,309,683,346.48/297,881.28
  6. Step 6: Final answer
    x = 225,961.44

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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.