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Finding the Fourth Proportional to 655,607.45, 904,766.17 and 365,218.66

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Solution

The fourth proportional to 655,607.45, 904,766.17 and 365,218.66 is: 504,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,607.45 : 904,766.17 = 365,218.66 : x
  2. Step 2: Convert to fraction form
    655,607.45/904,766.17 = 365,218.66/x
  3. Step 3: Cross multiply
    655,607.45x = 904,766.17 × 365,218.66
  4. Step 4: Simplify right side
    655,607.45x = 330,437,488,220.73
  5. Step 5: Solve for x
    x = 330,437,488,220.73/655,607.45
  6. Step 6: Final answer
    x = 504,017.29

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1.5x scale

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.