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Finding the Fourth Proportional to 603,614,009.80, 905,421,014.70 and 603,614,009.80

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Solution

The fourth proportional to 603,614,009.80, 905,421,014.70 and 603,614,009.80 is: 905,421,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,614,009.80 : 905,421,014.70 = 603,614,009.80 : x
  2. Step 2: Convert to fraction form
    603,614,009.80/905,421,014.70 = 603,614,009.80/x
  3. Step 3: Cross multiply
    603,614,009.80x = 905,421,014.70 × 603,614,009.80
  4. Step 4: Simplify right side
    603,614,009.80x = 546,524,809,240,251,712
  5. Step 5: Solve for x
    x = 546,524,809,240,251,712/603,614,009.80
  6. Step 6: Final answer
    x = 905,421,014.70

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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.