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Finding the Fourth Proportional to 336,475.36, 505,445.68 and 203,418.32

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Solution

The fourth proportional to 336,475.36, 505,445.68 and 203,418.32 is: 305,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,475.36 : 505,445.68 = 203,418.32 : x
  2. Step 2: Convert to fraction form
    336,475.36/505,445.68 = 203,418.32/x
  3. Step 3: Cross multiply
    336,475.36x = 505,445.68 × 203,418.32
  4. Step 4: Simplify right side
    336,475.36x = 102,816,911,076.86
  5. Step 5: Solve for x
    x = 102,816,911,076.86/336,475.36
  6. Step 6: Final answer
    x = 305,570.40

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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.