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Finding the Fourth Proportional to 322,486,212.80, 483,729,319.20 and 176,863,505.60

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Solution

The fourth proportional to 322,486,212.80, 483,729,319.20 and 176,863,505.60 is: 265,295,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,486,212.80 : 483,729,319.20 = 176,863,505.60 : x
  2. Step 2: Convert to fraction form
    322,486,212.80/483,729,319.20 = 176,863,505.60/x
  3. Step 3: Cross multiply
    322,486,212.80x = 483,729,319.20 × 176,863,505.60
  4. Step 4: Simplify right side
    322,486,212.80x = 85,554,063,155,213,376
  5. Step 5: Solve for x
    x = 85,554,063,155,213,376/322,486,212.80
  6. Step 6: Final answer
    x = 265,295,258.40

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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.