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Finding the Fourth Proportional to 336,911.40, 505,337.94 and 137,252.88

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Solution

The fourth proportional to 336,911.40, 505,337.94 and 137,252.88 is: 205,867.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,911.40 : 505,337.94 = 137,252.88 : x
  2. Step 2: Convert to fraction form
    336,911.40/505,337.94 = 137,252.88/x
  3. Step 3: Cross multiply
    336,911.40x = 505,337.94 × 137,252.88
  4. Step 4: Simplify right side
    336,911.40x = 69,359,087,638.27
  5. Step 5: Solve for x
    x = 69,359,087,638.27/336,911.40
  6. Step 6: Final answer
    x = 205,867.44

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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.