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Finding the Third Proportional to 253,779,388,979 and 383,938,375,641

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Solution

The third proportional to 253,779,388,979 and 383,938,375,641 is: 580,853,618,108.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,779,388,979 : 383,938,375,641 = 383,938,375,641 : x
  2. Step 2: Convert to fraction form
    253,779,388,979/383,938,375,641 = 383,938,375,641/x
  3. Step 3: Cross multiply
    253,779,388,979x = 383,938,375,641 × 383,938,375,641
  4. Step 4: Simplify right side
    253,779,388,979x = 147,408,676,289,849,619,120,128
  5. Step 5: Solve for x
    x = 147,408,676,289,849,619,120,128/253,779,388,979
  6. Step 6: Final answer
    x = 580,853,618,108.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.