Home / 854,200.80-1,278,968.40-616,255.20

Finding the Fourth Proportional to 854,200.80, 1,278,968.40 and 616,255.20

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Solution

The fourth proportional to 854,200.80, 1,278,968.40 and 616,255.20 is: 922,699.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,200.80 : 1,278,968.40 = 616,255.20 : x
  2. Step 2: Convert to fraction form
    854,200.80/1,278,968.40 = 616,255.20/x
  3. Step 3: Cross multiply
    854,200.80x = 1,278,968.40 × 616,255.20
  4. Step 4: Simplify right side
    854,200.80x = 788,170,927,135.68
  5. Step 5: Solve for x
    x = 788,170,927,135.68/854,200.80
  6. Step 6: Final answer
    x = 922,699.82

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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.