Home / 656,109.44-905,497.92-401,628.80

Finding the Fourth Proportional to 656,109.44, 905,497.92 and 401,628.80

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Solution

The fourth proportional to 656,109.44, 905,497.92 and 401,628.80 is: 554,288.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,109.44 : 905,497.92 = 401,628.80 : x
  2. Step 2: Convert to fraction form
    656,109.44/905,497.92 = 401,628.80/x
  3. Step 3: Cross multiply
    656,109.44x = 905,497.92 × 401,628.80
  4. Step 4: Simplify right side
    656,109.44x = 363,674,043,012.10
  5. Step 5: Solve for x
    x = 363,674,043,012.10/656,109.44
  6. Step 6: Final answer
    x = 554,288.69

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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.