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Finding the Fourth Proportional to 1,298,294, 1,945,744.44 and 939,672.56

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Solution

The fourth proportional to 1,298,294, 1,945,744.44 and 939,672.56 is: 1,408,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,294 : 1,945,744.44 = 939,672.56 : x
  2. Step 2: Convert to fraction form
    1,298,294/1,945,744.44 = 939,672.56/x
  3. Step 3: Cross multiply
    1,298,294x = 1,945,744.44 × 939,672.56
  4. Step 4: Simplify right side
    1,298,294x = 1,828,362,659,040.57
  5. Step 5: Solve for x
    x = 1,828,362,659,040.57/1,298,294
  6. Step 6: Final answer
    x = 1,408,280.91

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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.