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Finding the Fourth Proportional to 535,906.72, 739,504.65 and 294,188.95

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Solution

The fourth proportional to 535,906.72, 739,504.65 and 294,188.95 is: 405,955.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,906.72 : 739,504.65 = 294,188.95 : x
  2. Step 2: Convert to fraction form
    535,906.72/739,504.65 = 294,188.95/x
  3. Step 3: Cross multiply
    535,906.72x = 739,504.65 × 294,188.95
  4. Step 4: Simplify right side
    535,906.72x = 217,554,096,503.62
  5. Step 5: Solve for x
    x = 217,554,096,503.62/535,906.72
  6. Step 6: Final answer
    x = 405,955.16

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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.