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Finding the Fourth Proportional to 307,215.80, 460,823.70 and 274,556.60

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Solution

The fourth proportional to 307,215.80, 460,823.70 and 274,556.60 is: 411,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,215.80 : 460,823.70 = 274,556.60 : x
  2. Step 2: Convert to fraction form
    307,215.80/460,823.70 = 274,556.60/x
  3. Step 3: Cross multiply
    307,215.80x = 460,823.70 × 274,556.60
  4. Step 4: Simplify right side
    307,215.80x = 126,522,188,271.42
  5. Step 5: Solve for x
    x = 126,522,188,271.42/307,215.80
  6. Step 6: Final answer
    x = 411,834.90

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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.