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Finding the Fourth Proportional to 641,084.21, 888,741.87 and 606,956.07

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Solution

The fourth proportional to 641,084.21, 888,741.87 and 606,956.07 is: 841,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,084.21 : 888,741.87 = 606,956.07 : x
  2. Step 2: Convert to fraction form
    641,084.21/888,741.87 = 606,956.07/x
  3. Step 3: Cross multiply
    641,084.21x = 888,741.87 × 606,956.07
  4. Step 4: Simplify right side
    641,084.21x = 539,427,272,659.65
  5. Step 5: Solve for x
    x = 539,427,272,659.65/641,084.21
  6. Step 6: Final answer
    x = 841,429.67

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.