Home / 419,905,115.60-629,857,673.40-384,192,280.40

Finding the Fourth Proportional to 419,905,115.60, 629,857,673.40 and 384,192,280.40

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Solution

The fourth proportional to 419,905,115.60, 629,857,673.40 and 384,192,280.40 is: 576,288,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,115.60 : 629,857,673.40 = 384,192,280.40 : x
  2. Step 2: Convert to fraction form
    419,905,115.60/629,857,673.40 = 384,192,280.40/x
  3. Step 3: Cross multiply
    419,905,115.60x = 629,857,673.40 × 384,192,280.40
  4. Step 4: Simplify right side
    419,905,115.60x = 241,986,455,870,984,384
  5. Step 5: Solve for x
    x = 241,986,455,870,984,384/419,905,115.60
  6. Step 6: Final answer
    x = 576,288,420.60

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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.