Home / 1,242,378.54-1,863,609.53-343,745.10

Finding the Fourth Proportional to 1,242,378.54, 1,863,609.53 and 343,745.10

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Solution

The fourth proportional to 1,242,378.54, 1,863,609.53 and 343,745.10 is: 515,629.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,378.54 : 1,863,609.53 = 343,745.10 : x
  2. Step 2: Convert to fraction form
    1,242,378.54/1,863,609.53 = 343,745.10/x
  3. Step 3: Cross multiply
    1,242,378.54x = 1,863,609.53 × 343,745.10
  4. Step 4: Simplify right side
    1,242,378.54x = 640,606,642,532.08
  5. Step 5: Solve for x
    x = 640,606,642,532.08/1,242,378.54
  6. Step 6: Final answer
    x = 515,629.19

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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.