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Finding the Fourth Proportional to 362,661.31, 540,346.92 and 342,289.01

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Solution

The fourth proportional to 362,661.31, 540,346.92 and 342,289.01 is: 509,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,661.31 : 540,346.92 = 342,289.01 : x
  2. Step 2: Convert to fraction form
    362,661.31/540,346.92 = 342,289.01/x
  3. Step 3: Cross multiply
    362,661.31x = 540,346.92 × 342,289.01
  4. Step 4: Simplify right side
    362,661.31x = 184,954,812,303.35
  5. Step 5: Solve for x
    x = 184,954,812,303.35/362,661.31
  6. Step 6: Final answer
    x = 509,993.23

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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.