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Finding the Fourth Proportional to 639,577,813.20, 959,366,719.80 and 593,661,310.80

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Solution

The fourth proportional to 639,577,813.20, 959,366,719.80 and 593,661,310.80 is: 890,491,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,577,813.20 : 959,366,719.80 = 593,661,310.80 : x
  2. Step 2: Convert to fraction form
    639,577,813.20/959,366,719.80 = 593,661,310.80/x
  3. Step 3: Cross multiply
    639,577,813.20x = 959,366,719.80 × 593,661,310.80
  4. Step 4: Simplify right side
    639,577,813.20x = 569,538,904,414,364,224
  5. Step 5: Solve for x
    x = 569,538,904,414,364,224/639,577,813.20
  6. Step 6: Final answer
    x = 890,491,966.20

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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.