Home / 448,763.36-621,913.38-440,247.39

Finding the Fourth Proportional to 448,763.36, 621,913.38 and 440,247.39

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Solution

The fourth proportional to 448,763.36, 621,913.38 and 440,247.39 is: 610,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,763.36 : 621,913.38 = 440,247.39 : x
  2. Step 2: Convert to fraction form
    448,763.36/621,913.38 = 440,247.39/x
  3. Step 3: Cross multiply
    448,763.36x = 621,913.38 × 440,247.39
  4. Step 4: Simplify right side
    448,763.36x = 273,795,738,367.98
  5. Step 5: Solve for x
    x = 273,795,738,367.98/448,763.36
  6. Step 6: Final answer
    x = 610,111.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.