Home / 450,056.27-621,077.81-256,458.44

Finding the Fourth Proportional to 450,056.27, 621,077.81 and 256,458.44

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Solution

The fourth proportional to 450,056.27, 621,077.81 and 256,458.44 is: 353,912.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,056.27 : 621,077.81 = 256,458.44 : x
  2. Step 2: Convert to fraction form
    450,056.27/621,077.81 = 256,458.44/x
  3. Step 3: Cross multiply
    450,056.27x = 621,077.81 × 256,458.44
  4. Step 4: Simplify right side
    450,056.27x = 159,280,641,883.54
  5. Step 5: Solve for x
    x = 159,280,641,883.54/450,056.27
  6. Step 6: Final answer
    x = 353,912.73

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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.