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Finding the Fourth Proportional to 322,576,019.20, 483,864,028.80 and 193,581,510.40

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Solution

The fourth proportional to 322,576,019.20, 483,864,028.80 and 193,581,510.40 is: 290,372,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,576,019.20 : 483,864,028.80 = 193,581,510.40 : x
  2. Step 2: Convert to fraction form
    322,576,019.20/483,864,028.80 = 193,581,510.40/x
  3. Step 3: Cross multiply
    322,576,019.20x = 483,864,028.80 × 193,581,510.40
  4. Step 4: Simplify right side
    322,576,019.20x = 93,667,129,523,333,104
  5. Step 5: Solve for x
    x = 93,667,129,523,333,104/322,576,019.20
  6. Step 6: Final answer
    x = 290,372,265.60

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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.