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Finding the Fourth Proportional to 384,513.68, 530,591.52 and 263,758.48

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Solution

The fourth proportional to 384,513.68, 530,591.52 and 263,758.48 is: 363,961.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,513.68 : 530,591.52 = 263,758.48 : x
  2. Step 2: Convert to fraction form
    384,513.68/530,591.52 = 263,758.48/x
  3. Step 3: Cross multiply
    384,513.68x = 530,591.52 × 263,758.48
  4. Step 4: Simplify right side
    384,513.68x = 139,948,012,816.09
  5. Step 5: Solve for x
    x = 139,948,012,816.09/384,513.68
  6. Step 6: Final answer
    x = 363,961.08

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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.