Home / 860,198.45-1,289,683.28-404,534.57

Finding the Fourth Proportional to 860,198.45, 1,289,683.28 and 404,534.57

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Solution

The fourth proportional to 860,198.45, 1,289,683.28 and 404,534.57 is: 606,512.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,198.45 : 1,289,683.28 = 404,534.57 : x
  2. Step 2: Convert to fraction form
    860,198.45/1,289,683.28 = 404,534.57/x
  3. Step 3: Cross multiply
    860,198.45x = 1,289,683.28 × 404,534.57
  4. Step 4: Simplify right side
    860,198.45x = 521,721,465,673.91
  5. Step 5: Solve for x
    x = 521,721,465,673.91/860,198.45
  6. Step 6: Final answer
    x = 606,512.91

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1.5x scale

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.