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Finding the Fourth Proportional to 656,796.87, 906,361.11 and 366,417

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Solution

The fourth proportional to 656,796.87, 906,361.11 and 366,417 is: 505,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,796.87 : 906,361.11 = 366,417 : x
  2. Step 2: Convert to fraction form
    656,796.87/906,361.11 = 366,417/x
  3. Step 3: Cross multiply
    656,796.87x = 906,361.11 × 366,417
  4. Step 4: Simplify right side
    656,796.87x = 332,106,118,842.87
  5. Step 5: Solve for x
    x = 332,106,118,842.87/656,796.87
  6. Step 6: Final answer
    x = 505,645.10

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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.