Home / 448,784.34-621,942.54-440,268.42

Finding the Fourth Proportional to 448,784.34, 621,942.54 and 440,268.42

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Solution

The fourth proportional to 448,784.34, 621,942.54 and 440,268.42 is: 610,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,784.34 : 621,942.54 = 440,268.42 : x
  2. Step 2: Convert to fraction form
    448,784.34/621,942.54 = 440,268.42/x
  3. Step 3: Cross multiply
    448,784.34x = 621,942.54 × 440,268.42
  4. Step 4: Simplify right side
    448,784.34x = 273,821,659,416.59
  5. Step 5: Solve for x
    x = 273,821,659,416.59/448,784.34
  6. Step 6: Final answer
    x = 610,140.85

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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.