Home / 312,012.27-430,576.56-168,771.87

Finding the Fourth Proportional to 312,012.27, 430,576.56 and 168,771.87

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Solution

The fourth proportional to 312,012.27, 430,576.56 and 168,771.87 is: 232,904.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,012.27 : 430,576.56 = 168,771.87 : x
  2. Step 2: Convert to fraction form
    312,012.27/430,576.56 = 168,771.87/x
  3. Step 3: Cross multiply
    312,012.27x = 430,576.56 × 168,771.87
  4. Step 4: Simplify right side
    312,012.27x = 72,669,211,209.37
  5. Step 5: Solve for x
    x = 72,669,211,209.37/312,012.27
  6. Step 6: Final answer
    x = 232,904.98

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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.