Home / 751,404.40-1,127,476.22-351,976.12

Finding the Fourth Proportional to 751,404.40, 1,127,476.22 and 351,976.12

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Solution

The fourth proportional to 751,404.40, 1,127,476.22 and 351,976.12 is: 528,137.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,404.40 : 1,127,476.22 = 351,976.12 : x
  2. Step 2: Convert to fraction form
    751,404.40/1,127,476.22 = 351,976.12/x
  3. Step 3: Cross multiply
    751,404.40x = 1,127,476.22 × 351,976.12
  4. Step 4: Simplify right side
    751,404.40x = 396,844,705,307.87
  5. Step 5: Solve for x
    x = 396,844,705,307.87/751,404.40
  6. Step 6: Final answer
    x = 528,137.32

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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.