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Finding the Fourth Proportional to 386,461,262.70, 579,493,314.45 and 113,796,600.30

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Solution

The fourth proportional to 386,461,262.70, 579,493,314.45 and 113,796,600.30 is: 170,636,427.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,461,262.70 : 579,493,314.45 = 113,796,600.30 : x
  2. Step 2: Convert to fraction form
    386,461,262.70/579,493,314.45 = 113,796,600.30/x
  3. Step 3: Cross multiply
    386,461,262.70x = 579,493,314.45 × 113,796,600.30
  4. Step 4: Simplify right side
    386,461,262.70x = 65,944,369,080,988,872
  5. Step 5: Solve for x
    x = 65,944,369,080,988,872/386,461,262.70
  6. Step 6: Final answer
    x = 170,636,427.10

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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.