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Finding the Fourth Proportional to 331,393.50, 457,294.95 and 186,187.92

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Solution

The fourth proportional to 331,393.50, 457,294.95 and 186,187.92 is: 256,923.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,393.50 : 457,294.95 = 186,187.92 : x
  2. Step 2: Convert to fraction form
    331,393.50/457,294.95 = 186,187.92/x
  3. Step 3: Cross multiply
    331,393.50x = 457,294.95 × 186,187.92
  4. Step 4: Simplify right side
    331,393.50x = 85,142,795,567.00
  5. Step 5: Solve for x
    x = 85,142,795,567.00/331,393.50
  6. Step 6: Final answer
    x = 256,923.55

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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.