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Finding the Third Proportional to 621,809,999,483.65 and 955,342,340,558.40

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Solution

The third proportional to 621,809,999,483.65 and 955,342,340,558.40 is: 1,467,777,919,977.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,809,999,483.65 : 955,342,340,558.40 = 955,342,340,558.40 : x
  2. Step 2: Convert to fraction form
    621,809,999,483.65/955,342,340,558.40 = 955,342,340,558.40/x
  3. Step 3: Cross multiply
    621,809,999,483.65x = 955,342,340,558.40 × 955,342,340,558.40
  4. Step 4: Simplify right side
    621,809,999,483.65x = 912,678,987,663,602,006,097,920
  5. Step 5: Solve for x
    x = 912,678,987,663,602,006,097,920/621,809,999,483.65
  6. Step 6: Final answer
    x = 1,467,777,919,977.95

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.