Home / 681,145.20-939,943.44-375,162.03

Finding the Fourth Proportional to 681,145.20, 939,943.44 and 375,162.03

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Solution

The fourth proportional to 681,145.20, 939,943.44 and 375,162.03 is: 517,703.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,145.20 : 939,943.44 = 375,162.03 : x
  2. Step 2: Convert to fraction form
    681,145.20/939,943.44 = 375,162.03/x
  3. Step 3: Cross multiply
    681,145.20x = 939,943.44 × 375,162.03
  4. Step 4: Simplify right side
    681,145.20x = 352,631,089,035.58
  5. Step 5: Solve for x
    x = 352,631,089,035.58/681,145.20
  6. Step 6: Final answer
    x = 517,703.26

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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.