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Finding the Fourth Proportional to 610,489.40, 841,504.42 and 481,218.26

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Solution

The fourth proportional to 610,489.40, 841,504.42 and 481,218.26 is: 663,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,489.40 : 841,504.42 = 481,218.26 : x
  2. Step 2: Convert to fraction form
    610,489.40/841,504.42 = 481,218.26/x
  3. Step 3: Cross multiply
    610,489.40x = 841,504.42 × 481,218.26
  4. Step 4: Simplify right side
    610,489.40x = 404,947,292,774.71
  5. Step 5: Solve for x
    x = 404,947,292,774.71/610,489.40
  6. Step 6: Final answer
    x = 663,315.85

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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.