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Finding the Fourth Proportional to 706,361.15, 974,790.57 and 384,073.42

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Solution

The fourth proportional to 706,361.15, 974,790.57 and 384,073.42 is: 530,027.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,361.15 : 974,790.57 = 384,073.42 : x
  2. Step 2: Convert to fraction form
    706,361.15/974,790.57 = 384,073.42/x
  3. Step 3: Cross multiply
    706,361.15x = 974,790.57 × 384,073.42
  4. Step 4: Simplify right side
    706,361.15x = 374,391,146,083.28
  5. Step 5: Solve for x
    x = 374,391,146,083.28/706,361.15
  6. Step 6: Final answer
    x = 530,027.94

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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.