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Finding the Fourth Proportional to 298,980,615.60, 447,620,617.80 and 298,980,615.60

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Solution

The fourth proportional to 298,980,615.60, 447,620,617.80 and 298,980,615.60 is: 447,620,617.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,980,615.60 : 447,620,617.80 = 298,980,615.60 : x
  2. Step 2: Convert to fraction form
    298,980,615.60/447,620,617.80 = 298,980,615.60/x
  3. Step 3: Cross multiply
    298,980,615.60x = 447,620,617.80 × 298,980,615.60
  4. Step 4: Simplify right side
    298,980,615.60x = 133,829,887,865,096,336
  5. Step 5: Solve for x
    x = 133,829,887,865,096,336/298,980,615.60
  6. Step 6: Final answer
    x = 447,620,617.80

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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.