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Finding the Fourth Proportional to 605,419.20, 908,128.80 and 184,694.40

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Solution

The fourth proportional to 605,419.20, 908,128.80 and 184,694.40 is: 277,041.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,419.20 : 908,128.80 = 184,694.40 : x
  2. Step 2: Convert to fraction form
    605,419.20/908,128.80 = 184,694.40/x
  3. Step 3: Cross multiply
    605,419.20x = 908,128.80 × 184,694.40
  4. Step 4: Simplify right side
    605,419.20x = 167,726,303,838.72
  5. Step 5: Solve for x
    x = 167,726,303,838.72/605,419.20
  6. Step 6: Final answer
    x = 277,041.60

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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.