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Finding the Third Proportional to 502,376,044 and 678,541,210

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Solution

The third proportional to 502,376,044 and 678,541,210 is: 916,481,148.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,376,044 : 678,541,210 = 678,541,210 : x
  2. Step 2: Convert to fraction form
    502,376,044/678,541,210 = 678,541,210/x
  3. Step 3: Cross multiply
    502,376,044x = 678,541,210 × 678,541,210
  4. Step 4: Simplify right side
    502,376,044x = 460,418,173,668,264,128
  5. Step 5: Solve for x
    x = 460,418,173,668,264,128/502,376,044
  6. Step 6: Final answer
    x = 916,481,148.27

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.