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Finding the Fourth Proportional to 496,919.80, 745,379.70 and 448,708.60

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Solution

The fourth proportional to 496,919.80, 745,379.70 and 448,708.60 is: 673,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,919.80 : 745,379.70 = 448,708.60 : x
  2. Step 2: Convert to fraction form
    496,919.80/745,379.70 = 448,708.60/x
  3. Step 3: Cross multiply
    496,919.80x = 745,379.70 × 448,708.60
  4. Step 4: Simplify right side
    496,919.80x = 334,458,281,655.42
  5. Step 5: Solve for x
    x = 334,458,281,655.42/496,919.80
  6. Step 6: Final answer
    x = 673,062.90

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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.