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Finding the Fourth Proportional to 404,856,998.40, 607,285,497.60 and 404,856,998.40

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Solution

The fourth proportional to 404,856,998.40, 607,285,497.60 and 404,856,998.40 is: 607,285,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,856,998.40 : 607,285,497.60 = 404,856,998.40 : x
  2. Step 2: Convert to fraction form
    404,856,998.40/607,285,497.60 = 404,856,998.40/x
  3. Step 3: Cross multiply
    404,856,998.40x = 607,285,497.60 × 404,856,998.40
  4. Step 4: Simplify right side
    404,856,998.40x = 245,863,783,730,186,400
  5. Step 5: Solve for x
    x = 245,863,783,730,186,400/404,856,998.40
  6. Step 6: Final answer
    x = 607,285,497.60

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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.