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Finding the Fourth Proportional to 603,620,002.65, 905,430,003.98 and 603,620,002.65

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Solution

The fourth proportional to 603,620,002.65, 905,430,003.98 and 603,620,002.65 is: 905,430,003.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,620,002.65 : 905,430,003.98 = 603,620,002.65 : x
  2. Step 2: Convert to fraction form
    603,620,002.65/905,430,003.98 = 603,620,002.65/x
  3. Step 3: Cross multiply
    603,620,002.65x = 905,430,003.98 × 603,620,002.65
  4. Step 4: Simplify right side
    603,620,002.65x = 546,535,661,398,779,008
  5. Step 5: Solve for x
    x = 546,535,661,398,779,008/603,620,002.65
  6. Step 6: Final answer
    x = 905,430,003.98

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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.