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Finding the Fourth Proportional to 362,988.60, 543,446.10 and 325,663.80

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Solution

The fourth proportional to 362,988.60, 543,446.10 and 325,663.80 is: 487,565.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,988.60 : 543,446.10 = 325,663.80 : x
  2. Step 2: Convert to fraction form
    362,988.60/543,446.10 = 325,663.80/x
  3. Step 3: Cross multiply
    362,988.60x = 543,446.10 × 325,663.80
  4. Step 4: Simplify right side
    362,988.60x = 176,980,722,021.18
  5. Step 5: Solve for x
    x = 176,980,722,021.18/362,988.60
  6. Step 6: Final answer
    x = 487,565.51

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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.