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Finding the Fourth Proportional to 618,361.62, 928,051.14 and 263,776.02

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Solution

The fourth proportional to 618,361.62, 928,051.14 and 263,776.02 is: 395,881.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,361.62 : 928,051.14 = 263,776.02 : x
  2. Step 2: Convert to fraction form
    618,361.62/928,051.14 = 263,776.02/x
  3. Step 3: Cross multiply
    618,361.62x = 928,051.14 × 263,776.02
  4. Step 4: Simplify right side
    618,361.62x = 244,797,636,065.66
  5. Step 5: Solve for x
    x = 244,797,636,065.66/618,361.62
  6. Step 6: Final answer
    x = 395,881.03

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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.