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Finding the Fourth Proportional to 611,338.17, 843,649.73 and 382,028.69

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Solution

The fourth proportional to 611,338.17, 843,649.73 and 382,028.69 is: 527,201.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,338.17 : 843,649.73 = 382,028.69 : x
  2. Step 2: Convert to fraction form
    611,338.17/843,649.73 = 382,028.69/x
  3. Step 3: Cross multiply
    611,338.17x = 843,649.73 × 382,028.69
  4. Step 4: Simplify right side
    611,338.17x = 322,298,401,170.75
  5. Step 5: Solve for x
    x = 322,298,401,170.75/611,338.17
  6. Step 6: Final answer
    x = 527,201.50

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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.