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Finding the Fourth Proportional to 611,836.82, 844,358.51 and 418,649.49

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Solution

The fourth proportional to 611,836.82, 844,358.51 and 418,649.49 is: 577,752.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,836.82 : 844,358.51 = 418,649.49 : x
  2. Step 2: Convert to fraction form
    611,836.82/844,358.51 = 418,649.49/x
  3. Step 3: Cross multiply
    611,836.82x = 844,358.51 × 418,649.49
  4. Step 4: Simplify right side
    611,836.82x = 353,490,259,588.66
  5. Step 5: Solve for x
    x = 353,490,259,588.66/611,836.82
  6. Step 6: Final answer
    x = 577,752.51

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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.