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Finding the Fourth Proportional to 348,697.32, 481,186.44 and 212,709.64

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Solution

The fourth proportional to 348,697.32, 481,186.44 and 212,709.64 is: 293,529.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,697.32 : 481,186.44 = 212,709.64 : x
  2. Step 2: Convert to fraction form
    348,697.32/481,186.44 = 212,709.64/x
  3. Step 3: Cross multiply
    348,697.32x = 481,186.44 × 212,709.64
  4. Step 4: Simplify right side
    348,697.32x = 102,352,994,425.28
  5. Step 5: Solve for x
    x = 102,352,994,425.28/348,697.32
  6. Step 6: Final answer
    x = 293,529.63

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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.