Home / 505,715.56-758,684.20-190,172.36

Finding the Fourth Proportional to 505,715.56, 758,684.20 and 190,172.36

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Solution

The fourth proportional to 505,715.56, 758,684.20 and 190,172.36 is: 285,300.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,715.56 : 758,684.20 = 190,172.36 : x
  2. Step 2: Convert to fraction form
    505,715.56/758,684.20 = 190,172.36/x
  3. Step 3: Cross multiply
    505,715.56x = 758,684.20 × 190,172.36
  4. Step 4: Simplify right side
    505,715.56x = 144,280,764,808.71
  5. Step 5: Solve for x
    x = 144,280,764,808.71/505,715.56
  6. Step 6: Final answer
    x = 285,300.23

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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.