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Finding the Fourth Proportional to 265,951.44, 397,369.56 and 256,649.40

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Solution

The fourth proportional to 265,951.44, 397,369.56 and 256,649.40 is: 383,470.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,951.44 : 397,369.56 = 256,649.40 : x
  2. Step 2: Convert to fraction form
    265,951.44/397,369.56 = 256,649.40/x
  3. Step 3: Cross multiply
    265,951.44x = 397,369.56 × 256,649.40
  4. Step 4: Simplify right side
    265,951.44x = 101,984,659,152.26
  5. Step 5: Solve for x
    x = 101,984,659,152.26/265,951.44
  6. Step 6: Final answer
    x = 383,470.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.