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Finding the Fourth Proportional to 384,716.39, 530,973.20 and 260,481.02

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Solution

The fourth proportional to 384,716.39, 530,973.20 and 260,481.02 is: 359,507.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,716.39 : 530,973.20 = 260,481.02 : x
  2. Step 2: Convert to fraction form
    384,716.39/530,973.20 = 260,481.02/x
  3. Step 3: Cross multiply
    384,716.39x = 530,973.20 × 260,481.02
  4. Step 4: Simplify right side
    384,716.39x = 138,308,437,992.40
  5. Step 5: Solve for x
    x = 138,308,437,992.40/384,716.39
  6. Step 6: Final answer
    x = 359,507.53

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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.