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Finding the Fourth Proportional to 683,741.91, 943,563.81 and 381,935.91

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Solution

The fourth proportional to 683,741.91, 943,563.81 and 381,935.91 is: 527,071.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,741.91 : 943,563.81 = 381,935.91 : x
  2. Step 2: Convert to fraction form
    683,741.91/943,563.81 = 381,935.91/x
  3. Step 3: Cross multiply
    683,741.91x = 943,563.81 × 381,935.91
  4. Step 4: Simplify right side
    683,741.91x = 360,380,902,415.42
  5. Step 5: Solve for x
    x = 360,380,902,415.42/683,741.91
  6. Step 6: Final answer
    x = 527,071.54

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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.