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Finding the Fourth Proportional to 632,796.80, 873,259.92 and 346,316.72

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Solution

The fourth proportional to 632,796.80, 873,259.92 and 346,316.72 is: 477,917.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,796.80 : 873,259.92 = 346,316.72 : x
  2. Step 2: Convert to fraction form
    632,796.80/873,259.92 = 346,316.72/x
  3. Step 3: Cross multiply
    632,796.80x = 873,259.92 × 346,316.72
  4. Step 4: Simplify right side
    632,796.80x = 302,424,511,201.86
  5. Step 5: Solve for x
    x = 302,424,511,201.86/632,796.80
  6. Step 6: Final answer
    x = 477,917.26

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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.