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Finding the Fourth Proportional to 269,541.30, 404,311.95 and 256,419.30

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Solution

The fourth proportional to 269,541.30, 404,311.95 and 256,419.30 is: 384,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,541.30 : 404,311.95 = 256,419.30 : x
  2. Step 2: Convert to fraction form
    269,541.30/404,311.95 = 256,419.30/x
  3. Step 3: Cross multiply
    269,541.30x = 404,311.95 × 256,419.30
  4. Step 4: Simplify right side
    269,541.30x = 103,673,387,200.64
  5. Step 5: Solve for x
    x = 103,673,387,200.64/269,541.30
  6. Step 6: Final answer
    x = 384,628.95

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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.