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Finding the Fourth Proportional to 348,880.85, 481,507.64 and 212,993.57

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Solution

The fourth proportional to 348,880.85, 481,507.64 and 212,993.57 is: 293,962.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,880.85 : 481,507.64 = 212,993.57 : x
  2. Step 2: Convert to fraction form
    348,880.85/481,507.64 = 212,993.57/x
  3. Step 3: Cross multiply
    348,880.85x = 481,507.64 × 212,993.57
  4. Step 4: Simplify right side
    348,880.85x = 102,558,030,357.75
  5. Step 5: Solve for x
    x = 102,558,030,357.75/348,880.85
  6. Step 6: Final answer
    x = 293,962.91

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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.