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Finding the Fourth Proportional to 655,290.67, 903,527.35 and 448,659.27

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Solution

The fourth proportional to 655,290.67, 903,527.35 and 448,659.27 is: 618,620.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,290.67 : 903,527.35 = 448,659.27 : x
  2. Step 2: Convert to fraction form
    655,290.67/903,527.35 = 448,659.27/x
  3. Step 3: Cross multiply
    655,290.67x = 903,527.35 × 448,659.27
  4. Step 4: Simplify right side
    655,290.67x = 405,375,921,276.04
  5. Step 5: Solve for x
    x = 405,375,921,276.04/655,290.67
  6. Step 6: Final answer
    x = 618,620.01

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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.