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Finding the Fourth Proportional to 382,686.70, 574,039.50 and 183,028.18

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Solution

The fourth proportional to 382,686.70, 574,039.50 and 183,028.18 is: 274,546.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,686.70 : 574,039.50 = 183,028.18 : x
  2. Step 2: Convert to fraction form
    382,686.70/574,039.50 = 183,028.18/x
  3. Step 3: Cross multiply
    382,686.70x = 574,039.50 × 183,028.18
  4. Step 4: Simplify right side
    382,686.70x = 105,065,404,933.11
  5. Step 5: Solve for x
    x = 105,065,404,933.11/382,686.70
  6. Step 6: Final answer
    x = 274,546.79

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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.