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Finding the Fourth Proportional to 505,792.05, 697,984.88 and 276,344.41

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Solution

The fourth proportional to 505,792.05, 697,984.88 and 276,344.41 is: 381,350.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,792.05 : 697,984.88 = 276,344.41 : x
  2. Step 2: Convert to fraction form
    505,792.05/697,984.88 = 276,344.41/x
  3. Step 3: Cross multiply
    505,792.05x = 697,984.88 × 276,344.41
  4. Step 4: Simplify right side
    505,792.05x = 192,884,217,071.27
  5. Step 5: Solve for x
    x = 192,884,217,071.27/505,792.05
  6. Step 6: Final answer
    x = 381,350.83

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1.5x scale

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.