Home / 312,116.13-430,674.08-189,544.77

Finding the Fourth Proportional to 312,116.13, 430,674.08 and 189,544.77

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Solution

The fourth proportional to 312,116.13, 430,674.08 and 189,544.77 is: 261,543.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,116.13 : 430,674.08 = 189,544.77 : x
  2. Step 2: Convert to fraction form
    312,116.13/430,674.08 = 189,544.77/x
  3. Step 3: Cross multiply
    312,116.13x = 430,674.08 × 189,544.77
  4. Step 4: Simplify right side
    312,116.13x = 81,632,019,438.56
  5. Step 5: Solve for x
    x = 81,632,019,438.56/312,116.13
  6. Step 6: Final answer
    x = 261,543.74

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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.