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Finding the Fourth Proportional to 608,158.37, 839,391.78 and 353,656.37

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Solution

The fourth proportional to 608,158.37, 839,391.78 and 353,656.37 is: 488,123.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,158.37 : 839,391.78 = 353,656.37 : x
  2. Step 2: Convert to fraction form
    608,158.37/839,391.78 = 353,656.37/x
  3. Step 3: Cross multiply
    608,158.37x = 839,391.78 × 353,656.37
  4. Step 4: Simplify right side
    608,158.37x = 296,856,245,725.68
  5. Step 5: Solve for x
    x = 296,856,245,725.68/608,158.37
  6. Step 6: Final answer
    x = 488,123.26

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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.