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Finding the Fourth Proportional to 488,706,303.80, 733,059,455.70 and 143,694,806.60

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Solution

The fourth proportional to 488,706,303.80, 733,059,455.70 and 143,694,806.60 is: 215,542,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,706,303.80 : 733,059,455.70 = 143,694,806.60 : x
  2. Step 2: Convert to fraction form
    488,706,303.80/733,059,455.70 = 143,694,806.60/x
  3. Step 3: Cross multiply
    488,706,303.80x = 733,059,455.70 × 143,694,806.60
  4. Step 4: Simplify right side
    488,706,303.80x = 105,336,836,713,112,768
  5. Step 5: Solve for x
    x = 105,336,836,713,112,768/488,706,303.80
  6. Step 6: Final answer
    x = 215,542,209.90

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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.