Home / 1,938,889.28-2,907,021.72-676,028

Finding the Fourth Proportional to 1,938,889.28, 2,907,021.72 and 676,028

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Solution

The fourth proportional to 1,938,889.28, 2,907,021.72 and 676,028 is: 1,013,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,889.28 : 2,907,021.72 = 676,028 : x
  2. Step 2: Convert to fraction form
    1,938,889.28/2,907,021.72 = 676,028/x
  3. Step 3: Cross multiply
    1,938,889.28x = 2,907,021.72 × 676,028
  4. Step 4: Simplify right side
    1,938,889.28x = 1,965,228,079,328.16
  5. Step 5: Solve for x
    x = 1,965,228,079,328.16/1,938,889.28
  6. Step 6: Final answer
    x = 1,013,584.48

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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.