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Finding the Fourth Proportional to 552,541,778.16, 762,502,977.18 and 305,017,818

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Solution

The fourth proportional to 552,541,778.16, 762,502,977.18 and 305,017,818 is: 420,922,007.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,541,778.16 : 762,502,977.18 = 305,017,818 : x
  2. Step 2: Convert to fraction form
    552,541,778.16/762,502,977.18 = 305,017,818/x
  3. Step 3: Cross multiply
    552,541,778.16x = 762,502,977.18 × 305,017,818
  4. Step 4: Simplify right side
    552,541,778.16x = 232,576,994,317,947,392
  5. Step 5: Solve for x
    x = 232,576,994,317,947,392/552,541,778.16
  6. Step 6: Final answer
    x = 420,922,007.19

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Why These Related Problems?

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