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Finding the Fourth Proportional to 482,322,672.80, 723,484,009.20 and 252,362,247.20

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Solution

The fourth proportional to 482,322,672.80, 723,484,009.20 and 252,362,247.20 is: 378,543,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,322,672.80 : 723,484,009.20 = 252,362,247.20 : x
  2. Step 2: Convert to fraction form
    482,322,672.80/723,484,009.20 = 252,362,247.20/x
  3. Step 3: Cross multiply
    482,322,672.80x = 723,484,009.20 × 252,362,247.20
  4. Step 4: Simplify right side
    482,322,672.80x = 182,580,050,374,977,472
  5. Step 5: Solve for x
    x = 182,580,050,374,977,472/482,322,672.80
  6. Step 6: Final answer
    x = 378,543,370.80

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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.