Home / 819,985.41-1,131,067.60-529,486.20

Finding the Fourth Proportional to 819,985.41, 1,131,067.60 and 529,486.20

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Solution

The fourth proportional to 819,985.41, 1,131,067.60 and 529,486.20 is: 730,360.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,985.41 : 1,131,067.60 = 529,486.20 : x
  2. Step 2: Convert to fraction form
    819,985.41/1,131,067.60 = 529,486.20/x
  3. Step 3: Cross multiply
    819,985.41x = 1,131,067.60 × 529,486.20
  4. Step 4: Simplify right side
    819,985.41x = 598,884,684,143.40
  5. Step 5: Solve for x
    x = 598,884,684,143.40/819,985.41
  6. Step 6: Final answer
    x = 730,360.17

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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.