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Finding the Fourth Proportional to 647,033,999.70, 970,550,999.55 and 532,148,265.30

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Solution

The fourth proportional to 647,033,999.70, 970,550,999.55 and 532,148,265.30 is: 798,222,397.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,033,999.70 : 970,550,999.55 = 532,148,265.30 : x
  2. Step 2: Convert to fraction form
    647,033,999.70/970,550,999.55 = 532,148,265.30/x
  3. Step 3: Cross multiply
    647,033,999.70x = 970,550,999.55 × 532,148,265.30
  4. Step 4: Simplify right side
    647,033,999.70x = 516,477,030,795,713,536
  5. Step 5: Solve for x
    x = 516,477,030,795,713,536/647,033,999.70
  6. Step 6: Final answer
    x = 798,222,397.95

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1.5x scale

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.