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Finding the Fourth Proportional to 663,185.36, 993,998.82 and 307,450.64

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Solution

The fourth proportional to 663,185.36, 993,998.82 and 307,450.64 is: 460,814.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,185.36 : 993,998.82 = 307,450.64 : x
  2. Step 2: Convert to fraction form
    663,185.36/993,998.82 = 307,450.64/x
  3. Step 3: Cross multiply
    663,185.36x = 993,998.82 × 307,450.64
  4. Step 4: Simplify right side
    663,185.36x = 305,605,573,368.25
  5. Step 5: Solve for x
    x = 305,605,573,368.25/663,185.36
  6. Step 6: Final answer
    x = 460,814.72

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1.5x scale

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.