Home / 919,788.53-1,269,291.14-511,886.77

Finding the Fourth Proportional to 919,788.53, 1,269,291.14 and 511,886.77

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Solution

The fourth proportional to 919,788.53, 1,269,291.14 and 511,886.77 is: 706,394.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,788.53 : 1,269,291.14 = 511,886.77 : x
  2. Step 2: Convert to fraction form
    919,788.53/1,269,291.14 = 511,886.77/x
  3. Step 3: Cross multiply
    919,788.53x = 1,269,291.14 × 511,886.77
  4. Step 4: Simplify right side
    919,788.53x = 649,733,339,284.78
  5. Step 5: Solve for x
    x = 649,733,339,284.78/919,788.53
  6. Step 6: Final answer
    x = 706,394.26

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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.