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Finding the Fourth Proportional to 345,893.25, 477,331.45 and 192,931.32

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Solution

The fourth proportional to 345,893.25, 477,331.45 and 192,931.32 is: 266,244.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,893.25 : 477,331.45 = 192,931.32 : x
  2. Step 2: Convert to fraction form
    345,893.25/477,331.45 = 192,931.32/x
  3. Step 3: Cross multiply
    345,893.25x = 477,331.45 × 192,931.32
  4. Step 4: Simplify right side
    345,893.25x = 92,092,183,374.70
  5. Step 5: Solve for x
    x = 92,092,183,374.70/345,893.25
  6. Step 6: Final answer
    x = 266,244.53

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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.