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Finding the Fourth Proportional to 1,664,245,015.45, 2,496,306,978.50 and 499,683,239.37

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Solution

The fourth proportional to 1,664,245,015.45, 2,496,306,978.50 and 499,683,239.37 is: 749,506,680.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,245,015.45 : 2,496,306,978.50 = 499,683,239.37 : x
  2. Step 2: Convert to fraction form
    1,664,245,015.45/2,496,306,978.50 = 499,683,239.37/x
  3. Step 3: Cross multiply
    1,664,245,015.45x = 2,496,306,978.50 × 499,683,239.37
  4. Step 4: Simplify right side
    1,664,245,015.45x = 1,247,362,757,478,817,024
  5. Step 5: Solve for x
    x = 1,247,362,757,478,817,024/1,664,245,015.45
  6. Step 6: Final answer
    x = 749,506,680.75

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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.