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Finding the Fourth Proportional to 655,397,903.88, 904,462,440.24 and 358,059,404.64

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Solution

The fourth proportional to 655,397,903.88, 904,462,440.24 and 358,059,404.64 is: 494,129,262.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,397,903.88 : 904,462,440.24 = 358,059,404.64 : x
  2. Step 2: Convert to fraction form
    655,397,903.88/904,462,440.24 = 358,059,404.64/x
  3. Step 3: Cross multiply
    655,397,903.88x = 904,462,440.24 × 358,059,404.64
  4. Step 4: Simplify right side
    655,397,903.88x = 323,851,282,871,576,000
  5. Step 5: Solve for x
    x = 323,851,282,871,576,000/655,397,903.88
  6. Step 6: Final answer
    x = 494,129,262.47

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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.