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Finding the Fourth Proportional to 330,783,139.10, 496,174,708.65 and 330,783,139.10

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Solution

The fourth proportional to 330,783,139.10, 496,174,708.65 and 330,783,139.10 is: 496,174,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,783,139.10 : 496,174,708.65 = 330,783,139.10 : x
  2. Step 2: Convert to fraction form
    330,783,139.10/496,174,708.65 = 330,783,139.10/x
  3. Step 3: Cross multiply
    330,783,139.10x = 496,174,708.65 × 330,783,139.10
  4. Step 4: Simplify right side
    330,783,139.10x = 164,126,227,669,274,912
  5. Step 5: Solve for x
    x = 164,126,227,669,274,912/330,783,139.10
  6. Step 6: Final answer
    x = 496,174,708.65

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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.