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Finding the Fourth Proportional to 404,055.60, 607,249.80 and 397,057.20

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Solution

The fourth proportional to 404,055.60, 607,249.80 and 397,057.20 is: 596,732.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,055.60 : 607,249.80 = 397,057.20 : x
  2. Step 2: Convert to fraction form
    404,055.60/607,249.80 = 397,057.20/x
  3. Step 3: Cross multiply
    404,055.60x = 607,249.80 × 397,057.20
  4. Step 4: Simplify right side
    404,055.60x = 241,112,905,288.56
  5. Step 5: Solve for x
    x = 241,112,905,288.56/404,055.60
  6. Step 6: Final answer
    x = 596,732.00

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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.