Home / 839,918.40-1,259,877.60-503,995.20

Finding the Fourth Proportional to 839,918.40, 1,259,877.60 and 503,995.20

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Solution

The fourth proportional to 839,918.40, 1,259,877.60 and 503,995.20 is: 755,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,918.40 : 1,259,877.60 = 503,995.20 : x
  2. Step 2: Convert to fraction form
    839,918.40/1,259,877.60 = 503,995.20/x
  3. Step 3: Cross multiply
    839,918.40x = 1,259,877.60 × 503,995.20
  4. Step 4: Simplify right side
    839,918.40x = 634,972,262,987.52
  5. Step 5: Solve for x
    x = 634,972,262,987.52/839,918.40
  6. Step 6: Final answer
    x = 755,992.80

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Similar ratio
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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.