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Finding the Fourth Proportional to 461,379.60, 692,263.80 and 251,168.40

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Solution

The fourth proportional to 461,379.60, 692,263.80 and 251,168.40 is: 376,858.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,379.60 : 692,263.80 = 251,168.40 : x
  2. Step 2: Convert to fraction form
    461,379.60/692,263.80 = 251,168.40/x
  3. Step 3: Cross multiply
    461,379.60x = 692,263.80 × 251,168.40
  4. Step 4: Simplify right side
    461,379.60x = 173,874,791,023.92
  5. Step 5: Solve for x
    x = 173,874,791,023.92/461,379.60
  6. Step 6: Final answer
    x = 376,858.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.