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Finding the Fourth Proportional to 603,620,003.65, 905,430,005.48 and 603,620,003.65

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Solution

The fourth proportional to 603,620,003.65, 905,430,005.48 and 603,620,003.65 is: 905,430,005.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,620,003.65 : 905,430,005.48 = 603,620,003.65 : x
  2. Step 2: Convert to fraction form
    603,620,003.65/905,430,005.48 = 603,620,003.65/x
  3. Step 3: Cross multiply
    603,620,003.65x = 905,430,005.48 × 603,620,003.65
  4. Step 4: Simplify right side
    603,620,003.65x = 546,535,663,212,657,088
  5. Step 5: Solve for x
    x = 546,535,663,212,657,088/603,620,003.65
  6. Step 6: Final answer
    x = 905,430,005.48

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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.