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Finding the Third Proportional to 1,225,922,878 and 1,903,479,547.50

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Solution

The third proportional to 1,225,922,878 and 1,903,479,547.50 is: 2,955,515,761.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,922,878 : 1,903,479,547.50 = 1,903,479,547.50 : x
  2. Step 2: Convert to fraction form
    1,225,922,878/1,903,479,547.50 = 1,903,479,547.50/x
  3. Step 3: Cross multiply
    1,225,922,878x = 1,903,479,547.50 × 1,903,479,547.50
  4. Step 4: Simplify right side
    1,225,922,878x = 3,623,234,387,750,804,992
  5. Step 5: Solve for x
    x = 3,623,234,387,750,804,992/1,225,922,878
  6. Step 6: Final answer
    x = 2,955,515,761.04

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.