Home / 312,556.07-431,326.98-169,316.70

Finding the Fourth Proportional to 312,556.07, 431,326.98 and 169,316.70

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Solution

The fourth proportional to 312,556.07, 431,326.98 and 169,316.70 is: 233,656.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,556.07 : 431,326.98 = 169,316.70 : x
  2. Step 2: Convert to fraction form
    312,556.07/431,326.98 = 169,316.70/x
  3. Step 3: Cross multiply
    312,556.07x = 431,326.98 × 169,316.70
  4. Step 4: Simplify right side
    312,556.07x = 73,030,860,874.57
  5. Step 5: Solve for x
    x = 73,030,860,874.57/312,556.07
  6. Step 6: Final answer
    x = 233,656.83

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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.