Home / 1,286,714.60-1,775,879.10-713,939.30

Finding the Fourth Proportional to 1,286,714.60, 1,775,879.10 and 713,939.30

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Solution

The fourth proportional to 1,286,714.60, 1,775,879.10 and 713,939.30 is: 985,354.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,714.60 : 1,775,879.10 = 713,939.30 : x
  2. Step 2: Convert to fraction form
    1,286,714.60/1,775,879.10 = 713,939.30/x
  3. Step 3: Cross multiply
    1,286,714.60x = 1,775,879.10 × 713,939.30
  4. Step 4: Simplify right side
    1,286,714.60x = 1,267,869,881,538.63
  5. Step 5: Solve for x
    x = 1,267,869,881,538.63/1,286,714.60
  6. Step 6: Final answer
    x = 985,354.39

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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.