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Finding the Fourth Proportional to 358,221.25, 494,345.32 and 197,072.84

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Solution

The fourth proportional to 358,221.25, 494,345.32 and 197,072.84 is: 271,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,221.25 : 494,345.32 = 197,072.84 : x
  2. Step 2: Convert to fraction form
    358,221.25/494,345.32 = 197,072.84/x
  3. Step 3: Cross multiply
    358,221.25x = 494,345.32 × 197,072.84
  4. Step 4: Simplify right side
    358,221.25x = 97,422,032,696.02
  5. Step 5: Solve for x
    x = 97,422,032,696.02/358,221.25
  6. Step 6: Final answer
    x = 271,960.51

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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.