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Finding the Fourth Proportional to 576,735.72, 790,114.79 and 555,172.53

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Solution

The fourth proportional to 576,735.72, 790,114.79 and 555,172.53 is: 760,573.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,735.72 : 790,114.79 = 555,172.53 : x
  2. Step 2: Convert to fraction form
    576,735.72/790,114.79 = 555,172.53/x
  3. Step 3: Cross multiply
    576,735.72x = 790,114.79 × 555,172.53
  4. Step 4: Simplify right side
    576,735.72x = 438,650,026,954.72
  5. Step 5: Solve for x
    x = 438,650,026,954.72/576,735.72
  6. Step 6: Final answer
    x = 760,573.71

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.