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Finding the Fourth Proportional to 498,459.80, 746,636.70 and 330,060.80

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Solution

The fourth proportional to 498,459.80, 746,636.70 and 330,060.80 is: 494,393.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,459.80 : 746,636.70 = 330,060.80 : x
  2. Step 2: Convert to fraction form
    498,459.80/746,636.70 = 330,060.80/x
  3. Step 3: Cross multiply
    498,459.80x = 746,636.70 × 330,060.80
  4. Step 4: Simplify right side
    498,459.80x = 246,435,506,511.36
  5. Step 5: Solve for x
    x = 246,435,506,511.36/498,459.80
  6. Step 6: Final answer
    x = 494,393.94

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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.