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Finding the Third Proportional to 198,699,447,306 and 433,361,403,426

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Solution

The third proportional to 198,699,447,306 and 433,361,403,426 is: 945,156,660,099.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,699,447,306 : 433,361,403,426 = 433,361,403,426 : x
  2. Step 2: Convert to fraction form
    198,699,447,306/433,361,403,426 = 433,361,403,426/x
  3. Step 3: Cross multiply
    198,699,447,306x = 433,361,403,426 × 433,361,403,426
  4. Step 4: Simplify right side
    198,699,447,306x = 187,802,105,979,352,307,990,528
  5. Step 5: Solve for x
    x = 187,802,105,979,352,307,990,528/198,699,447,306
  6. Step 6: Final answer
    x = 945,156,660,099.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.