Home / 1,386,578.33-1,913,302.22-813,409.37

Finding the Fourth Proportional to 1,386,578.33, 1,913,302.22 and 813,409.37

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Solution

The fourth proportional to 1,386,578.33, 1,913,302.22 and 813,409.37 is: 1,122,401.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,578.33 : 1,913,302.22 = 813,409.37 : x
  2. Step 2: Convert to fraction form
    1,386,578.33/1,913,302.22 = 813,409.37/x
  3. Step 3: Cross multiply
    1,386,578.33x = 1,913,302.22 × 813,409.37
  4. Step 4: Simplify right side
    1,386,578.33x = 1,556,297,939,756.24
  5. Step 5: Solve for x
    x = 1,556,297,939,756.24/1,386,578.33
  6. Step 6: Final answer
    x = 1,122,401.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.