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Finding the Fourth Proportional to 706,376.38, 974,792.31 and 384,086.56

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Solution

The fourth proportional to 706,376.38, 974,792.31 and 384,086.56 is: 530,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,376.38 : 974,792.31 = 384,086.56 : x
  2. Step 2: Convert to fraction form
    706,376.38/974,792.31 = 384,086.56/x
  3. Step 3: Cross multiply
    706,376.38x = 974,792.31 × 384,086.56
  4. Step 4: Simplify right side
    706,376.38x = 374,404,625,062.35
  5. Step 5: Solve for x
    x = 374,404,625,062.35/706,376.38
  6. Step 6: Final answer
    x = 530,035.60

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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.