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Finding the Fourth Proportional to 362,658.06, 540,342.09 and 342,285.75

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Solution

The fourth proportional to 362,658.06, 540,342.09 and 342,285.75 is: 509,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,658.06 : 540,342.09 = 342,285.75 : x
  2. Step 2: Convert to fraction form
    362,658.06/540,342.09 = 342,285.75/x
  3. Step 3: Cross multiply
    362,658.06x = 540,342.09 × 342,285.75
  4. Step 4: Simplify right side
    362,658.06x = 184,951,397,532.22
  5. Step 5: Solve for x
    x = 184,951,397,532.22/362,658.06
  6. Step 6: Final answer
    x = 509,988.38

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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.