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Finding the Fourth Proportional to 486,162,908.40, 670,904,846.34 and 266,146,334.40

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Solution

The fourth proportional to 486,162,908.40, 670,904,846.34 and 266,146,334.40 is: 367,281,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,162,908.40 : 670,904,846.34 = 266,146,334.40 : x
  2. Step 2: Convert to fraction form
    486,162,908.40/670,904,846.34 = 266,146,334.40/x
  3. Step 3: Cross multiply
    486,162,908.40x = 670,904,846.34 × 266,146,334.40
  4. Step 4: Simplify right side
    486,162,908.40x = 178,558,865,584,586,272
  5. Step 5: Solve for x
    x = 178,558,865,584,586,272/486,162,908.40
  6. Step 6: Final answer
    x = 367,281,959.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.