Home / 1,181,611.40-1,630,615.40-645,067.40

Finding the Fourth Proportional to 1,181,611.40, 1,630,615.40 and 645,067.40

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Solution

The fourth proportional to 1,181,611.40, 1,630,615.40 and 645,067.40 is: 890,188.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,611.40 : 1,630,615.40 = 645,067.40 : x
  2. Step 2: Convert to fraction form
    1,181,611.40/1,630,615.40 = 645,067.40/x
  3. Step 3: Cross multiply
    1,181,611.40x = 1,630,615.40 × 645,067.40
  4. Step 4: Simplify right side
    1,181,611.40x = 1,051,856,836,477.96
  5. Step 5: Solve for x
    x = 1,051,856,836,477.96/1,181,611.40
  6. Step 6: Final answer
    x = 890,188.46

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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.