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Finding the Fourth Proportional to 2,546,282.78, 3,819,895.73 and 840,544.88

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Solution

The fourth proportional to 2,546,282.78, 3,819,895.73 and 840,544.88 is: 1,260,972.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,546,282.78 : 3,819,895.73 = 840,544.88 : x
  2. Step 2: Convert to fraction form
    2,546,282.78/3,819,895.73 = 840,544.88/x
  3. Step 3: Cross multiply
    2,546,282.78x = 3,819,895.73 × 840,544.88
  4. Step 4: Simplify right side
    2,546,282.78x = 3,210,793,774,683.16
  5. Step 5: Solve for x
    x = 3,210,793,774,683.16/2,546,282.78
  6. Step 6: Final answer
    x = 1,260,972.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.