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Finding the Fourth Proportional to 362,707.20, 544,060.80 and 309,052.80

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Solution

The fourth proportional to 362,707.20, 544,060.80 and 309,052.80 is: 463,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,707.20 : 544,060.80 = 309,052.80 : x
  2. Step 2: Convert to fraction form
    362,707.20/544,060.80 = 309,052.80/x
  3. Step 3: Cross multiply
    362,707.20x = 544,060.80 × 309,052.80
  4. Step 4: Simplify right side
    362,707.20x = 168,143,513,610.24
  5. Step 5: Solve for x
    x = 168,143,513,610.24/362,707.20
  6. Step 6: Final answer
    x = 463,579.20

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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.