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Finding the Fourth Proportional to 664,660.67, 914,922.69 and 579,630.11

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Solution

The fourth proportional to 664,660.67, 914,922.69 and 579,630.11 is: 797,875.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,660.67 : 914,922.69 = 579,630.11 : x
  2. Step 2: Convert to fraction form
    664,660.67/914,922.69 = 579,630.11/x
  3. Step 3: Cross multiply
    664,660.67x = 914,922.69 × 579,630.11
  4. Step 4: Simplify right side
    664,660.67x = 530,316,739,446.20
  5. Step 5: Solve for x
    x = 530,316,739,446.20/664,660.67
  6. Step 6: Final answer
    x = 797,875.91

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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.