Home / 621,674,720.55-858,298,290.07-395,741,184.13

Finding the Fourth Proportional to 621,674,720.55, 858,298,290.07 and 395,741,184.13

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Solution

The fourth proportional to 621,674,720.55, 858,298,290.07 and 395,741,184.13 is: 546,369,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,674,720.55 : 858,298,290.07 = 395,741,184.13 : x
  2. Step 2: Convert to fraction form
    621,674,720.55/858,298,290.07 = 395,741,184.13/x
  3. Step 3: Cross multiply
    621,674,720.55x = 858,298,290.07 × 395,741,184.13
  4. Step 4: Simplify right side
    621,674,720.55x = 339,663,981,644,764,544
  5. Step 5: Solve for x
    x = 339,663,981,644,764,544/621,674,720.55
  6. Step 6: Final answer
    x = 546,369,299.60

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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.