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Finding the Fourth Proportional to 605,112.80, 907,798.80 and 184,431.20

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Solution

The fourth proportional to 605,112.80, 907,798.80 and 184,431.20 is: 276,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,112.80 : 907,798.80 = 184,431.20 : x
  2. Step 2: Convert to fraction form
    605,112.80/907,798.80 = 184,431.20/x
  3. Step 3: Cross multiply
    605,112.80x = 907,798.80 × 184,431.20
  4. Step 4: Simplify right side
    605,112.80x = 167,426,422,042.56
  5. Step 5: Solve for x
    x = 167,426,422,042.56/605,112.80
  6. Step 6: Final answer
    x = 276,686.30

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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.