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Finding the Fourth Proportional to 605,421.20, 908,131.80 and 184,696.40

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Solution

The fourth proportional to 605,421.20, 908,131.80 and 184,696.40 is: 277,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,421.20 : 908,131.80 = 184,696.40 : x
  2. Step 2: Convert to fraction form
    605,421.20/908,131.80 = 184,696.40/x
  3. Step 3: Cross multiply
    605,421.20x = 908,131.80 × 184,696.40
  4. Step 4: Simplify right side
    605,421.20x = 167,728,674,185.52
  5. Step 5: Solve for x
    x = 167,728,674,185.52/605,421.20
  6. Step 6: Final answer
    x = 277,044.60

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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.