Home / 312,011.43-430,575.86-176,074.19

Finding the Fourth Proportional to 312,011.43, 430,575.86 and 176,074.19

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Solution

The fourth proportional to 312,011.43, 430,575.86 and 176,074.19 is: 242,982.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,011.43 : 430,575.86 = 176,074.19 : x
  2. Step 2: Convert to fraction form
    312,011.43/430,575.86 = 176,074.19/x
  3. Step 3: Cross multiply
    312,011.43x = 430,575.86 × 176,074.19
  4. Step 4: Simplify right side
    312,011.43x = 75,813,294,902.68
  5. Step 5: Solve for x
    x = 75,813,294,902.68/312,011.43
  6. Step 6: Final answer
    x = 242,982.43

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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.