Home / 1,122,111.11-1,683,386.18-412,144.49

Finding the Fourth Proportional to 1,122,111.11, 1,683,386.18 and 412,144.49

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Solution

The fourth proportional to 1,122,111.11, 1,683,386.18 and 412,144.49 is: 618,297.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,111.11 : 1,683,386.18 = 412,144.49 : x
  2. Step 2: Convert to fraction form
    1,122,111.11/1,683,386.18 = 412,144.49/x
  3. Step 3: Cross multiply
    1,122,111.11x = 1,683,386.18 × 412,144.49
  4. Step 4: Simplify right side
    1,122,111.11x = 693,798,336,568.43
  5. Step 5: Solve for x
    x = 693,798,336,568.43/1,122,111.11
  6. Step 6: Final answer
    x = 618,297.36

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Double scale
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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.