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Finding the Fourth Proportional to 583,047.40, 873,404.70 and 394,090.60

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Solution

The fourth proportional to 583,047.40, 873,404.70 and 394,090.60 is: 590,347.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,047.40 : 873,404.70 = 394,090.60 : x
  2. Step 2: Convert to fraction form
    583,047.40/873,404.70 = 394,090.60/x
  3. Step 3: Cross multiply
    583,047.40x = 873,404.70 × 394,090.60
  4. Step 4: Simplify right side
    583,047.40x = 344,200,582,265.82
  5. Step 5: Solve for x
    x = 344,200,582,265.82/583,047.40
  6. Step 6: Final answer
    x = 590,347.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.