Home / 789,149.17-1,089,132.51-445,055.86

Finding the Fourth Proportional to 789,149.17, 1,089,132.51 and 445,055.86

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Solution

The fourth proportional to 789,149.17, 1,089,132.51 and 445,055.86 is: 614,237.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,149.17 : 1,089,132.51 = 445,055.86 : x
  2. Step 2: Convert to fraction form
    789,149.17/1,089,132.51 = 445,055.86/x
  3. Step 3: Cross multiply
    789,149.17x = 1,089,132.51 × 445,055.86
  4. Step 4: Simplify right side
    789,149.17x = 484,724,805,892.01
  5. Step 5: Solve for x
    x = 484,724,805,892.01/789,149.17
  6. Step 6: Final answer
    x = 614,237.24

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Double scale
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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.