Home / 621,674,734.68-858,298,309.56-395,741,198.25

Finding the Fourth Proportional to 621,674,734.68, 858,298,309.56 and 395,741,198.25

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Solution

The fourth proportional to 621,674,734.68, 858,298,309.56 and 395,741,198.25 is: 546,369,319.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,674,734.68 : 858,298,309.56 = 395,741,198.25 : x
  2. Step 2: Convert to fraction form
    621,674,734.68/858,298,309.56 = 395,741,198.25/x
  3. Step 3: Cross multiply
    621,674,734.68x = 858,298,309.56 × 395,741,198.25
  4. Step 4: Simplify right side
    621,674,734.68x = 339,664,001,481,223,808
  5. Step 5: Solve for x
    x = 339,664,001,481,223,808/621,674,734.68
  6. Step 6: Final answer
    x = 546,369,319.09

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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.