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Finding the Third Proportional to 213,779,223 and 330,486,054

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Solution

The third proportional to 213,779,223 and 330,486,054 is: 510,905,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,779,223 : 330,486,054 = 330,486,054 : x
  2. Step 2: Convert to fraction form
    213,779,223/330,486,054 = 330,486,054/x
  3. Step 3: Cross multiply
    213,779,223x = 330,486,054 × 330,486,054
  4. Step 4: Simplify right side
    213,779,223x = 109,221,031,888,490,912
  5. Step 5: Solve for x
    x = 109,221,031,888,490,912/213,779,223
  6. Step 6: Final answer
    x = 510,905,738.90

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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.