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Finding the Fourth Proportional to 358,577.20, 539,032.20 and 254,119.60

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Solution

The fourth proportional to 358,577.20, 539,032.20 and 254,119.60 is: 382,006.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,577.20 : 539,032.20 = 254,119.60 : x
  2. Step 2: Convert to fraction form
    358,577.20/539,032.20 = 254,119.60/x
  3. Step 3: Cross multiply
    358,577.20x = 539,032.20 × 254,119.60
  4. Step 4: Simplify right side
    358,577.20x = 136,978,647,051.12
  5. Step 5: Solve for x
    x = 136,978,647,051.12/358,577.20
  6. Step 6: Final answer
    x = 382,006.01

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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.