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Finding the Fourth Proportional to 543,318.60, 749,857.64 and 325,535.87

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Solution

The fourth proportional to 543,318.60, 749,857.64 and 325,535.87 is: 449,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,318.60 : 749,857.64 = 325,535.87 : x
  2. Step 2: Convert to fraction form
    543,318.60/749,857.64 = 325,535.87/x
  3. Step 3: Cross multiply
    543,318.60x = 749,857.64 × 325,535.87
  4. Step 4: Simplify right side
    543,318.60x = 244,105,559,460.51
  5. Step 5: Solve for x
    x = 244,105,559,460.51/543,318.60
  6. Step 6: Final answer
    x = 449,286.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.