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Finding the Fourth Proportional to 576,055.80, 794,940.48 and 321,401.52

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Solution

The fourth proportional to 576,055.80, 794,940.48 and 321,401.52 is: 443,524.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,055.80 : 794,940.48 = 321,401.52 : x
  2. Step 2: Convert to fraction form
    576,055.80/794,940.48 = 321,401.52/x
  3. Step 3: Cross multiply
    576,055.80x = 794,940.48 × 321,401.52
  4. Step 4: Simplify right side
    576,055.80x = 255,495,078,581.53
  5. Step 5: Solve for x
    x = 255,495,078,581.53/576,055.80
  6. Step 6: Final answer
    x = 443,524.88

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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.