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Finding the Fourth Proportional to 621,567,682.09, 932,351,523.13 and 621,567,682.09

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Solution

The fourth proportional to 621,567,682.09, 932,351,523.13 and 621,567,682.09 is: 932,351,523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,567,682.09 : 932,351,523.13 = 621,567,682.09 : x
  2. Step 2: Convert to fraction form
    621,567,682.09/932,351,523.13 = 621,567,682.09/x
  3. Step 3: Cross multiply
    621,567,682.09x = 932,351,523.13 × 621,567,682.09
  4. Step 4: Simplify right side
    621,567,682.09x = 579,519,575,123,441,152
  5. Step 5: Solve for x
    x = 579,519,575,123,441,152/621,567,682.09
  6. Step 6: Final answer
    x = 932,351,523.13

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.