Home / 853,664.40-1,280,561.40-254,578.80

Finding the Fourth Proportional to 853,664.40, 1,280,561.40 and 254,578.80

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Solution

The fourth proportional to 853,664.40, 1,280,561.40 and 254,578.80 is: 381,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,664.40 : 1,280,561.40 = 254,578.80 : x
  2. Step 2: Convert to fraction form
    853,664.40/1,280,561.40 = 254,578.80/x
  3. Step 3: Cross multiply
    853,664.40x = 1,280,561.40 × 254,578.80
  4. Step 4: Simplify right side
    853,664.40x = 326,003,784,538.32
  5. Step 5: Solve for x
    x = 326,003,784,538.32/853,664.40
  6. Step 6: Final answer
    x = 381,887.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.