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Finding the Fourth Proportional to 296,078.80, 444,118.20 and 263,419.60

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Solution

The fourth proportional to 296,078.80, 444,118.20 and 263,419.60 is: 395,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,078.80 : 444,118.20 = 263,419.60 : x
  2. Step 2: Convert to fraction form
    296,078.80/444,118.20 = 263,419.60/x
  3. Step 3: Cross multiply
    296,078.80x = 444,118.20 × 263,419.60
  4. Step 4: Simplify right side
    296,078.80x = 116,989,438,596.72
  5. Step 5: Solve for x
    x = 116,989,438,596.72/296,078.80
  6. Step 6: Final answer
    x = 395,129.40

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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.