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Finding the Fourth Proportional to 269,240.45, 403,368.60 and 163,936.40

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Solution

The fourth proportional to 269,240.45, 403,368.60 and 163,936.40 is: 245,604.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,240.45 : 403,368.60 = 163,936.40 : x
  2. Step 2: Convert to fraction form
    269,240.45/403,368.60 = 163,936.40/x
  3. Step 3: Cross multiply
    269,240.45x = 403,368.60 × 163,936.40
  4. Step 4: Simplify right side
    269,240.45x = 66,126,796,157.04
  5. Step 5: Solve for x
    x = 66,126,796,157.04/269,240.45
  6. Step 6: Final answer
    x = 245,604.98

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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.