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Finding the Fourth Proportional to 586,179.15, 878,809.36 and 231,458.68

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Solution

The fourth proportional to 586,179.15, 878,809.36 and 231,458.68 is: 347,006.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,179.15 : 878,809.36 = 231,458.68 : x
  2. Step 2: Convert to fraction form
    586,179.15/878,809.36 = 231,458.68/x
  3. Step 3: Cross multiply
    586,179.15x = 878,809.36 × 231,458.68
  4. Step 4: Simplify right side
    586,179.15x = 203,408,054,437.25
  5. Step 5: Solve for x
    x = 203,408,054,437.25/586,179.15
  6. Step 6: Final answer
    x = 347,006.64

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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.