Home / 414,341.78-621,538.97-130,043.57

Finding the Fourth Proportional to 414,341.78, 621,538.97 and 130,043.57

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Solution

The fourth proportional to 414,341.78, 621,538.97 and 130,043.57 is: 195,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,341.78 : 621,538.97 = 130,043.57 : x
  2. Step 2: Convert to fraction form
    414,341.78/621,538.97 = 130,043.57/x
  3. Step 3: Cross multiply
    414,341.78x = 621,538.97 × 130,043.57
  4. Step 4: Simplify right side
    414,341.78x = 80,827,142,795.01
  5. Step 5: Solve for x
    x = 80,827,142,795.01/414,341.78
  6. Step 6: Final answer
    x = 195,073.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.