Home / 209,576.16-312,842.66-193,964.22

Finding the Fourth Proportional to 209,576.16, 312,842.66 and 193,964.22

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Solution

The fourth proportional to 209,576.16, 312,842.66 and 193,964.22 is: 289,538.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,576.16 : 312,842.66 = 193,964.22 : x
  2. Step 2: Convert to fraction form
    209,576.16/312,842.66 = 193,964.22/x
  3. Step 3: Cross multiply
    209,576.16x = 312,842.66 × 193,964.22
  4. Step 4: Simplify right side
    209,576.16x = 60,680,281,559.80
  5. Step 5: Solve for x
    x = 60,680,281,559.80/209,576.16
  6. Step 6: Final answer
    x = 289,538.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.