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Finding the Fourth Proportional to 362,659.06, 540,343.58 and 342,286.75

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Solution

The fourth proportional to 362,659.06, 540,343.58 and 342,286.75 is: 509,989.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,659.06 : 540,343.58 = 342,286.75 : x
  2. Step 2: Convert to fraction form
    362,659.06/540,343.58 = 342,286.75/x
  3. Step 3: Cross multiply
    362,659.06x = 540,343.58 × 342,286.75
  4. Step 4: Simplify right side
    362,659.06x = 184,952,447,881.57
  5. Step 5: Solve for x
    x = 184,952,447,881.57/362,659.06
  6. Step 6: Final answer
    x = 509,989.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.