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Finding the Fourth Proportional to 345,372.80, 476,629.16 and 192,410.90

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Solution

The fourth proportional to 345,372.80, 476,629.16 and 192,410.90 is: 265,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,372.80 : 476,629.16 = 192,410.90 : x
  2. Step 2: Convert to fraction form
    345,372.80/476,629.16 = 192,410.90/x
  3. Step 3: Cross multiply
    345,372.80x = 476,629.16 × 192,410.90
  4. Step 4: Simplify right side
    345,372.80x = 91,708,642,296.64
  5. Step 5: Solve for x
    x = 91,708,642,296.64/345,372.80
  6. Step 6: Final answer
    x = 265,535.22

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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.