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Finding the Fourth Proportional to 637,903,998.80, 957,303,895.80 and 274,659,045.20

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Solution

The fourth proportional to 637,903,998.80, 957,303,895.80 and 274,659,045.20 is: 412,181,416.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,903,998.80 : 957,303,895.80 = 274,659,045.20 : x
  2. Step 2: Convert to fraction form
    637,903,998.80/957,303,895.80 = 274,659,045.20/x
  3. Step 3: Cross multiply
    637,903,998.80x = 957,303,895.80 × 274,659,045.20
  4. Step 4: Simplify right side
    637,903,998.80x = 262,932,173,986,668,256
  5. Step 5: Solve for x
    x = 262,932,173,986,668,256/637,903,998.80
  6. Step 6: Final answer
    x = 412,181,416.77

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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.