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Finding the Fourth Proportional to 632,977.32, 873,486.80 and 361,133.22

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Solution

The fourth proportional to 632,977.32, 873,486.80 and 361,133.22 is: 498,351.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,977.32 : 873,486.80 = 361,133.22 : x
  2. Step 2: Convert to fraction form
    632,977.32/873,486.80 = 361,133.22/x
  3. Step 3: Cross multiply
    632,977.32x = 873,486.80 × 361,133.22
  4. Step 4: Simplify right side
    632,977.32x = 315,445,100,711.50
  5. Step 5: Solve for x
    x = 315,445,100,711.50/632,977.32
  6. Step 6: Final answer
    x = 498,351.35

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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.