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Finding the Fourth Proportional to 655,292.67, 903,530.11 and 448,661.27

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Solution

The fourth proportional to 655,292.67, 903,530.11 and 448,661.27 is: 618,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,292.67 : 903,530.11 = 448,661.27 : x
  2. Step 2: Convert to fraction form
    655,292.67/903,530.11 = 448,661.27/x
  3. Step 3: Cross multiply
    655,292.67x = 903,530.11 × 448,661.27
  4. Step 4: Simplify right side
    655,292.67x = 405,378,966,635.84
  5. Step 5: Solve for x
    x = 405,378,966,635.84/655,292.67
  6. Step 6: Final answer
    x = 618,622.77

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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.