Home / 1,298,438.39-1,947,685.26-445,506.33

Finding the Fourth Proportional to 1,298,438.39, 1,947,685.26 and 445,506.33

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Solution

The fourth proportional to 1,298,438.39, 1,947,685.26 and 445,506.33 is: 668,268.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,438.39 : 1,947,685.26 = 445,506.33 : x
  2. Step 2: Convert to fraction form
    1,298,438.39/1,947,685.26 = 445,506.33/x
  3. Step 3: Cross multiply
    1,298,438.39x = 1,947,685.26 × 445,506.33
  4. Step 4: Simplify right side
    1,298,438.39x = 867,706,112,177.70
  5. Step 5: Solve for x
    x = 867,706,112,177.70/1,298,438.39
  6. Step 6: Final answer
    x = 668,268.99

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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.