Home / 810,584.55-1,118,664.60-448,000.61

Finding the Fourth Proportional to 810,584.55, 1,118,664.60 and 448,000.61

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Solution

The fourth proportional to 810,584.55, 1,118,664.60 and 448,000.61 is: 618,272.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,584.55 : 1,118,664.60 = 448,000.61 : x
  2. Step 2: Convert to fraction form
    810,584.55/1,118,664.60 = 448,000.61/x
  3. Step 3: Cross multiply
    810,584.55x = 1,118,664.60 × 448,000.61
  4. Step 4: Simplify right side
    810,584.55x = 501,162,415,912.08
  5. Step 5: Solve for x
    x = 501,162,415,912.08/810,584.55
  6. Step 6: Final answer
    x = 618,272.85

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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.