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Finding the Fourth Proportional to 217,836,562.40, 305,736,462.40 and 217,836,562.40

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Solution

The fourth proportional to 217,836,562.40, 305,736,462.40 and 217,836,562.40 is: 305,736,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,836,562.40 : 305,736,462.40 = 217,836,562.40 : x
  2. Step 2: Convert to fraction form
    217,836,562.40/305,736,462.40 = 217,836,562.40/x
  3. Step 3: Cross multiply
    217,836,562.40x = 305,736,462.40 × 217,836,562.40
  4. Step 4: Simplify right side
    217,836,562.40x = 66,600,579,969,552,848
  5. Step 5: Solve for x
    x = 66,600,579,969,552,848/217,836,562.40
  6. Step 6: Final answer
    x = 305,736,462.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.