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Finding the Fourth Proportional to 655,762.21, 904,998.14 and 365,393

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Solution

The fourth proportional to 655,762.21, 904,998.14 and 365,393 is: 504,268.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,762.21 : 904,998.14 = 365,393 : x
  2. Step 2: Convert to fraction form
    655,762.21/904,998.14 = 365,393/x
  3. Step 3: Cross multiply
    655,762.21x = 904,998.14 × 365,393
  4. Step 4: Simplify right side
    655,762.21x = 330,679,985,369.02
  5. Step 5: Solve for x
    x = 330,679,985,369.02/655,762.21
  6. Step 6: Final answer
    x = 504,268.13

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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.