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Finding the Fourth Proportional to 440,764.80, 661,838.40 and 254,140.80

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Solution

The fourth proportional to 440,764.80, 661,838.40 and 254,140.80 is: 381,609.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,764.80 : 661,838.40 = 254,140.80 : x
  2. Step 2: Convert to fraction form
    440,764.80/661,838.40 = 254,140.80/x
  3. Step 3: Cross multiply
    440,764.80x = 661,838.40 × 254,140.80
  4. Step 4: Simplify right side
    440,764.80x = 168,200,140,446.72
  5. Step 5: Solve for x
    x = 168,200,140,446.72/440,764.80
  6. Step 6: Final answer
    x = 381,609.74

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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.