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Finding the Fourth Proportional to 498,234.30, 745,383.15 and 432,405.60

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Solution

The fourth proportional to 498,234.30, 745,383.15 and 432,405.60 is: 646,900.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,234.30 : 745,383.15 = 432,405.60 : x
  2. Step 2: Convert to fraction form
    498,234.30/745,383.15 = 432,405.60/x
  3. Step 3: Cross multiply
    498,234.30x = 745,383.15 × 432,405.60
  4. Step 4: Simplify right side
    498,234.30x = 322,307,848,205.64
  5. Step 5: Solve for x
    x = 322,307,848,205.64/498,234.30
  6. Step 6: Final answer
    x = 646,900.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.