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Finding the Third Proportional to 908,766,412 and 1,990,516,856

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Solution

The third proportional to 908,766,412 and 1,990,516,856 is: 4,359,929,352.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,766,412 : 1,990,516,856 = 1,990,516,856 : x
  2. Step 2: Convert to fraction form
    908,766,412/1,990,516,856 = 1,990,516,856/x
  3. Step 3: Cross multiply
    908,766,412x = 1,990,516,856 × 1,990,516,856
  4. Step 4: Simplify right side
    908,766,412x = 3,962,157,354,020,124,672
  5. Step 5: Solve for x
    x = 3,962,157,354,020,124,672/908,766,412
  6. Step 6: Final answer
    x = 4,359,929,352.25

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.