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Finding the Fourth Proportional to 655,998.19, 905,282.01 and 365,628.47

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Solution

The fourth proportional to 655,998.19, 905,282.01 and 365,628.47 is: 504,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,998.19 : 905,282.01 = 365,628.47 : x
  2. Step 2: Convert to fraction form
    655,998.19/905,282.01 = 365,628.47/x
  3. Step 3: Cross multiply
    655,998.19x = 905,282.01 × 365,628.47
  4. Step 4: Simplify right side
    655,998.19x = 330,996,876,234.83
  5. Step 5: Solve for x
    x = 330,996,876,234.83/655,998.19
  6. Step 6: Final answer
    x = 504,569.80

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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.