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Finding the Fourth Proportional to 519,444,576, 716,856,048 and 287,657,568

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Solution

The fourth proportional to 519,444,576, 716,856,048 and 287,657,568 is: 396,979,922.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,444,576 : 716,856,048 = 287,657,568 : x
  2. Step 2: Convert to fraction form
    519,444,576/716,856,048 = 287,657,568/x
  3. Step 3: Cross multiply
    519,444,576x = 716,856,048 × 287,657,568
  4. Step 4: Simplify right side
    519,444,576x = 206,209,067,373,771,264
  5. Step 5: Solve for x
    x = 206,209,067,373,771,264/519,444,576
  6. Step 6: Final answer
    x = 396,979,922.21

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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.