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Finding the Fourth Proportional to 274,312.70, 411,469.05 and 96,818.30

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Solution

The fourth proportional to 274,312.70, 411,469.05 and 96,818.30 is: 145,227.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,312.70 : 411,469.05 = 96,818.30 : x
  2. Step 2: Convert to fraction form
    274,312.70/411,469.05 = 96,818.30/x
  3. Step 3: Cross multiply
    274,312.70x = 411,469.05 × 96,818.30
  4. Step 4: Simplify right side
    274,312.70x = 39,837,733,923.62
  5. Step 5: Solve for x
    x = 39,837,733,923.62/274,312.70
  6. Step 6: Final answer
    x = 145,227.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.