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Finding the Fourth Proportional to 655,356,245.40, 983,412,281.70 and 246,705,672.60

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Solution

The fourth proportional to 655,356,245.40, 983,412,281.70 and 246,705,672.60 is: 370,200,772.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,356,245.40 : 983,412,281.70 = 246,705,672.60 : x
  2. Step 2: Convert to fraction form
    655,356,245.40/983,412,281.70 = 246,705,672.60/x
  3. Step 3: Cross multiply
    655,356,245.40x = 983,412,281.70 × 246,705,672.60
  4. Step 4: Simplify right side
    655,356,245.40x = 242,613,388,399,899,168
  5. Step 5: Solve for x
    x = 242,613,388,399,899,168/655,356,245.40
  6. Step 6: Final answer
    x = 370,200,772.64

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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.