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Finding the Fourth Proportional to 404,698.60, 607,739.10 and 265,076.20

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Solution

The fourth proportional to 404,698.60, 607,739.10 and 265,076.20 is: 398,067.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,698.60 : 607,739.10 = 265,076.20 : x
  2. Step 2: Convert to fraction form
    404,698.60/607,739.10 = 265,076.20/x
  3. Step 3: Cross multiply
    404,698.60x = 607,739.10 × 265,076.20
  4. Step 4: Simplify right side
    404,698.60x = 161,097,171,219.42
  5. Step 5: Solve for x
    x = 161,097,171,219.42/404,698.60
  6. Step 6: Final answer
    x = 398,067.03

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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.