Home / 628,458.68-868,147.74-605,127.13

Finding the Fourth Proportional to 628,458.68, 868,147.74 and 605,127.13

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Solution

The fourth proportional to 628,458.68, 868,147.74 and 605,127.13 is: 835,917.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,458.68 : 868,147.74 = 605,127.13 : x
  2. Step 2: Convert to fraction form
    628,458.68/868,147.74 = 605,127.13/x
  3. Step 3: Cross multiply
    628,458.68x = 868,147.74 × 605,127.13
  4. Step 4: Simplify right side
    628,458.68x = 525,339,748,151.82
  5. Step 5: Solve for x
    x = 525,339,748,151.82/628,458.68
  6. Step 6: Final answer
    x = 835,917.72

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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.