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Finding the Fourth Proportional to 356,114.64, 491,436.60 and 192,771.28

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Solution

The fourth proportional to 356,114.64, 491,436.60 and 192,771.28 is: 266,023.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,114.64 : 491,436.60 = 192,771.28 : x
  2. Step 2: Convert to fraction form
    356,114.64/491,436.60 = 192,771.28/x
  3. Step 3: Cross multiply
    356,114.64x = 491,436.60 × 192,771.28
  4. Step 4: Simplify right side
    356,114.64x = 94,734,862,420.85
  5. Step 5: Solve for x
    x = 94,734,862,420.85/356,114.64
  6. Step 6: Final answer
    x = 266,023.50

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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.