Home / 786,525.57-1,179,814.47-217,912.38

Finding the Fourth Proportional to 786,525.57, 1,179,814.47 and 217,912.38

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Solution

The fourth proportional to 786,525.57, 1,179,814.47 and 217,912.38 is: 326,875.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,525.57 : 1,179,814.47 = 217,912.38 : x
  2. Step 2: Convert to fraction form
    786,525.57/1,179,814.47 = 217,912.38/x
  3. Step 3: Cross multiply
    786,525.57x = 1,179,814.47 × 217,912.38
  4. Step 4: Simplify right side
    786,525.57x = 257,096,179,116.14
  5. Step 5: Solve for x
    x = 257,096,179,116.14/786,525.57
  6. Step 6: Final answer
    x = 326,875.81

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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.