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Finding the Fourth Proportional to 336,708.40, 505,062.60 and 328,932.40

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Solution

The fourth proportional to 336,708.40, 505,062.60 and 328,932.40 is: 493,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,708.40 : 505,062.60 = 328,932.40 : x
  2. Step 2: Convert to fraction form
    336,708.40/505,062.60 = 328,932.40/x
  3. Step 3: Cross multiply
    336,708.40x = 505,062.60 × 328,932.40
  4. Step 4: Simplify right side
    336,708.40x = 166,131,453,168.24
  5. Step 5: Solve for x
    x = 166,131,453,168.24/336,708.40
  6. Step 6: Final answer
    x = 493,398.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.