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Finding the Fourth Proportional to 666,339,644.07, 998,916,743.22 and 316,369,802.34

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Solution

The fourth proportional to 666,339,644.07, 998,916,743.22 and 316,369,802.34 is: 474,273,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,339,644.07 : 998,916,743.22 = 316,369,802.34 : x
  2. Step 2: Convert to fraction form
    666,339,644.07/998,916,743.22 = 316,369,802.34/x
  3. Step 3: Cross multiply
    666,339,644.07x = 998,916,743.22 × 316,369,802.34
  4. Step 4: Simplify right side
    666,339,644.07x = 316,027,092,606,627,904
  5. Step 5: Solve for x
    x = 316,027,092,606,627,904/666,339,644.07
  6. Step 6: Final answer
    x = 474,273,286.03

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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.