Home / 1,122,406.40-1,683,609.60-412,943.60

Finding the Fourth Proportional to 1,122,406.40, 1,683,609.60 and 412,943.60

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Solution

The fourth proportional to 1,122,406.40, 1,683,609.60 and 412,943.60 is: 619,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,406.40 : 1,683,609.60 = 412,943.60 : x
  2. Step 2: Convert to fraction form
    1,122,406.40/1,683,609.60 = 412,943.60/x
  3. Step 3: Cross multiply
    1,122,406.40x = 1,683,609.60 × 412,943.60
  4. Step 4: Simplify right side
    1,122,406.40x = 695,235,809,218.56
  5. Step 5: Solve for x
    x = 695,235,809,218.56/1,122,406.40
  6. Step 6: Final answer
    x = 619,415.40

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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.