Home / 751,421.44-1,036,988.16-411,889.60

Finding the Fourth Proportional to 751,421.44, 1,036,988.16 and 411,889.60

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Solution

The fourth proportional to 751,421.44, 1,036,988.16 and 411,889.60 is: 568,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,421.44 : 1,036,988.16 = 411,889.60 : x
  2. Step 2: Convert to fraction form
    751,421.44/1,036,988.16 = 411,889.60/x
  3. Step 3: Cross multiply
    751,421.44x = 1,036,988.16 × 411,889.60
  4. Step 4: Simplify right side
    751,421.44x = 427,124,638,427.14
  5. Step 5: Solve for x
    x = 427,124,638,427.14/751,421.44
  6. Step 6: Final answer
    x = 568,422.21

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1.5x scale

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.