Home / 897,568.20-1,238,759.26-515,668.80

Finding the Fourth Proportional to 897,568.20, 1,238,759.26 and 515,668.80

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Solution

The fourth proportional to 897,568.20, 1,238,759.26 and 515,668.80 is: 711,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,568.20 : 1,238,759.26 = 515,668.80 : x
  2. Step 2: Convert to fraction form
    897,568.20/1,238,759.26 = 515,668.80/x
  3. Step 3: Cross multiply
    897,568.20x = 1,238,759.26 × 515,668.80
  4. Step 4: Simplify right side
    897,568.20x = 638,789,501,093.09
  5. Step 5: Solve for x
    x = 638,789,501,093.09/897,568.20
  6. Step 6: Final answer
    x = 711,689.10

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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.