Home / 685,639.64-945,868.68-444,000.06

Finding the Fourth Proportional to 685,639.64, 945,868.68 and 444,000.06

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Solution

The fourth proportional to 685,639.64, 945,868.68 and 444,000.06 is: 612,516.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,639.64 : 945,868.68 = 444,000.06 : x
  2. Step 2: Convert to fraction form
    685,639.64/945,868.68 = 444,000.06/x
  3. Step 3: Cross multiply
    685,639.64x = 945,868.68 × 444,000.06
  4. Step 4: Simplify right side
    685,639.64x = 419,965,750,672.12
  5. Step 5: Solve for x
    x = 419,965,750,672.12/685,639.64
  6. Step 6: Final answer
    x = 612,516.73

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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.