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Finding the Fourth Proportional to 656,883.32, 984,852.08 and 403,640.58

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Solution

The fourth proportional to 656,883.32, 984,852.08 and 403,640.58 is: 605,170.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,883.32 : 984,852.08 = 403,640.58 : x
  2. Step 2: Convert to fraction form
    656,883.32/984,852.08 = 403,640.58/x
  3. Step 3: Cross multiply
    656,883.32x = 984,852.08 × 403,640.58
  4. Step 4: Simplify right side
    656,883.32x = 397,526,262,767.20
  5. Step 5: Solve for x
    x = 397,526,262,767.20/656,883.32
  6. Step 6: Final answer
    x = 605,170.28

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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.