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Finding the Fourth Proportional to 439,577.75, 659,380.31 and 151,386.42

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Solution

The fourth proportional to 439,577.75, 659,380.31 and 151,386.42 is: 227,084.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,577.75 : 659,380.31 = 151,386.42 : x
  2. Step 2: Convert to fraction form
    439,577.75/659,380.31 = 151,386.42/x
  3. Step 3: Cross multiply
    439,577.75x = 659,380.31 × 151,386.42
  4. Step 4: Simplify right side
    439,577.75x = 99,821,223,792.46
  5. Step 5: Solve for x
    x = 99,821,223,792.46/439,577.75
  6. Step 6: Final answer
    x = 227,084.34

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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.