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Finding the Fourth Proportional to 404,676.80, 607,015.20 and 298,388.60

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Solution

The fourth proportional to 404,676.80, 607,015.20 and 298,388.60 is: 447,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,676.80 : 607,015.20 = 298,388.60 : x
  2. Step 2: Convert to fraction form
    404,676.80/607,015.20 = 298,388.60/x
  3. Step 3: Cross multiply
    404,676.80x = 607,015.20 × 298,388.60
  4. Step 4: Simplify right side
    404,676.80x = 181,126,415,706.72
  5. Step 5: Solve for x
    x = 181,126,415,706.72/404,676.80
  6. Step 6: Final answer
    x = 447,582.90

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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.