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Finding the Fourth Proportional to 705,361.86, 973,399.14 and 383,072.04

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Solution

The fourth proportional to 705,361.86, 973,399.14 and 383,072.04 is: 528,639.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,361.86 : 973,399.14 = 383,072.04 : x
  2. Step 2: Convert to fraction form
    705,361.86/973,399.14 = 383,072.04/x
  3. Step 3: Cross multiply
    705,361.86x = 973,399.14 × 383,072.04
  4. Step 4: Simplify right side
    705,361.86x = 372,881,994,294.05
  5. Step 5: Solve for x
    x = 372,881,994,294.05/705,361.86
  6. Step 6: Final answer
    x = 528,639.29

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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.