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Finding the Fourth Proportional to 362,660.31, 540,345.43 and 342,288.01

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Solution

The fourth proportional to 362,660.31, 540,345.43 and 342,288.01 is: 509,991.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,660.31 : 540,345.43 = 342,288.01 : x
  2. Step 2: Convert to fraction form
    362,660.31/540,345.43 = 342,288.01/x
  3. Step 3: Cross multiply
    362,660.31x = 540,345.43 × 342,288.01
  4. Step 4: Simplify right side
    362,660.31x = 184,953,762,803.01
  5. Step 5: Solve for x
    x = 184,953,762,803.01/362,660.31
  6. Step 6: Final answer
    x = 509,991.74

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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.