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Finding the Fourth Proportional to 307,056,704.80, 459,913,210.80 and 266,745,920.80

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Solution

The fourth proportional to 307,056,704.80, 459,913,210.80 and 266,745,920.80 is: 399,535,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,056,704.80 : 459,913,210.80 = 266,745,920.80 : x
  2. Step 2: Convert to fraction form
    307,056,704.80/459,913,210.80 = 266,745,920.80/x
  3. Step 3: Cross multiply
    307,056,704.80x = 459,913,210.80 × 266,745,920.80
  4. Step 4: Simplify right side
    307,056,704.80x = 122,679,972,902,930,512
  5. Step 5: Solve for x
    x = 122,679,972,902,930,512/307,056,704.80
  6. Step 6: Final answer
    x = 399,535,235.63

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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.