Home / 312,525.39-431,282.73-176,556.86

Finding the Fourth Proportional to 312,525.39, 431,282.73 and 176,556.86

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Solution

The fourth proportional to 312,525.39, 431,282.73 and 176,556.86 is: 243,647.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,525.39 : 431,282.73 = 176,556.86 : x
  2. Step 2: Convert to fraction form
    312,525.39/431,282.73 = 176,556.86/x
  3. Step 3: Cross multiply
    312,525.39x = 431,282.73 × 176,556.86
  4. Step 4: Simplify right side
    312,525.39x = 76,145,926,136.85
  5. Step 5: Solve for x
    x = 76,145,926,136.85/312,525.39
  6. Step 6: Final answer
    x = 243,647.17

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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.