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Finding the Fourth Proportional to 426,782.12, 589,021.01 and 254,707.39

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Solution

The fourth proportional to 426,782.12, 589,021.01 and 254,707.39 is: 351,533.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,782.12 : 589,021.01 = 254,707.39 : x
  2. Step 2: Convert to fraction form
    426,782.12/589,021.01 = 254,707.39/x
  3. Step 3: Cross multiply
    426,782.12x = 589,021.01 × 254,707.39
  4. Step 4: Simplify right side
    426,782.12x = 150,028,002,649.64
  5. Step 5: Solve for x
    x = 150,028,002,649.64/426,782.12
  6. Step 6: Final answer
    x = 351,533.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.