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Finding the Fourth Proportional to 673,670.70, 1,010,506.05 and 274,105.80

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Solution

The fourth proportional to 673,670.70, 1,010,506.05 and 274,105.80 is: 411,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,670.70 : 1,010,506.05 = 274,105.80 : x
  2. Step 2: Convert to fraction form
    673,670.70/1,010,506.05 = 274,105.80/x
  3. Step 3: Cross multiply
    673,670.70x = 1,010,506.05 × 274,105.80
  4. Step 4: Simplify right side
    673,670.70x = 276,985,569,240.09
  5. Step 5: Solve for x
    x = 276,985,569,240.09/673,670.70
  6. Step 6: Final answer
    x = 411,158.70

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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.