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Finding the Fourth Proportional to 662,723,728.88, 994,229,089.70 and 253,779,893.96

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Solution

The fourth proportional to 662,723,728.88, 994,229,089.70 and 253,779,893.96 is: 380,724,790.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,723,728.88 : 994,229,089.70 = 253,779,893.96 : x
  2. Step 2: Convert to fraction form
    662,723,728.88/994,229,089.70 = 253,779,893.96/x
  3. Step 3: Cross multiply
    662,723,728.88x = 994,229,089.70 × 253,779,893.96
  4. Step 4: Simplify right side
    662,723,728.88x = 252,315,352,949,773,312
  5. Step 5: Solve for x
    x = 252,315,352,949,773,312/662,723,728.88
  6. Step 6: Final answer
    x = 380,724,790.67

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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.