Home / 312,048.44-430,623.78-168,805.40

Finding the Fourth Proportional to 312,048.44, 430,623.78 and 168,805.40

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Solution

The fourth proportional to 312,048.44, 430,623.78 and 168,805.40 is: 232,949.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,048.44 : 430,623.78 = 168,805.40 : x
  2. Step 2: Convert to fraction form
    312,048.44/430,623.78 = 168,805.40/x
  3. Step 3: Cross multiply
    312,048.44x = 430,623.78 × 168,805.40
  4. Step 4: Simplify right side
    312,048.44x = 72,691,619,432.41
  5. Step 5: Solve for x
    x = 72,691,619,432.41/312,048.44
  6. Step 6: Final answer
    x = 232,949.79

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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.