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Finding the Fourth Proportional to 655,545,889.35, 904,626,407.72 and 358,198,339.14

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Solution

The fourth proportional to 655,545,889.35, 904,626,407.72 and 358,198,339.14 is: 494,298,998.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,545,889.35 : 904,626,407.72 = 358,198,339.14 : x
  2. Step 2: Convert to fraction form
    655,545,889.35/904,626,407.72 = 358,198,339.14/x
  3. Step 3: Cross multiply
    655,545,889.35x = 904,626,407.72 × 358,198,339.14
  4. Step 4: Simplify right side
    655,545,889.35x = 324,035,676,788,383,936
  5. Step 5: Solve for x
    x = 324,035,676,788,383,936/655,545,889.35
  6. Step 6: Final answer
    x = 494,298,998.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.