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Finding the Fourth Proportional to 639,578,046.70, 959,367,070.05 and 593,661,544.30

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Solution

The fourth proportional to 639,578,046.70, 959,367,070.05 and 593,661,544.30 is: 890,492,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,578,046.70 : 959,367,070.05 = 593,661,544.30 : x
  2. Step 2: Convert to fraction form
    639,578,046.70/959,367,070.05 = 593,661,544.30/x
  3. Step 3: Cross multiply
    639,578,046.70x = 959,367,070.05 × 593,661,544.30
  4. Step 4: Simplify right side
    639,578,046.70x = 569,539,336,356,449,216
  5. Step 5: Solve for x
    x = 569,539,336,356,449,216/639,578,046.70
  6. Step 6: Final answer
    x = 890,492,316.45

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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.