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Finding the Fourth Proportional to 291,797.53, 402,711.55 and 171,040.28

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Solution

The fourth proportional to 291,797.53, 402,711.55 and 171,040.28 is: 236,053.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,797.53 : 402,711.55 = 171,040.28 : x
  2. Step 2: Convert to fraction form
    291,797.53/402,711.55 = 171,040.28/x
  3. Step 3: Cross multiply
    291,797.53x = 402,711.55 × 171,040.28
  4. Step 4: Simplify right side
    291,797.53x = 68,879,894,311.13
  5. Step 5: Solve for x
    x = 68,879,894,311.13/291,797.53
  6. Step 6: Final answer
    x = 236,053.73

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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.