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Finding the Fourth Proportional to 672,606,689.60, 1,008,910,034.40 and 629,559,968.60

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Solution

The fourth proportional to 672,606,689.60, 1,008,910,034.40 and 629,559,968.60 is: 944,339,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,606,689.60 : 1,008,910,034.40 = 629,559,968.60 : x
  2. Step 2: Convert to fraction form
    672,606,689.60/1,008,910,034.40 = 629,559,968.60/x
  3. Step 3: Cross multiply
    672,606,689.60x = 1,008,910,034.40 × 629,559,968.60
  4. Step 4: Simplify right side
    672,606,689.60x = 635,169,369,577,088,896
  5. Step 5: Solve for x
    x = 635,169,369,577,088,896/672,606,689.60
  6. Step 6: Final answer
    x = 944,339,952.90

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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.