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Finding the Fourth Proportional to 573,568.40, 791,533.44 and 315,456.56

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Solution

The fourth proportional to 573,568.40, 791,533.44 and 315,456.56 is: 435,335.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,568.40 : 791,533.44 = 315,456.56 : x
  2. Step 2: Convert to fraction form
    573,568.40/791,533.44 = 315,456.56/x
  3. Step 3: Cross multiply
    573,568.40x = 791,533.44 × 315,456.56
  4. Step 4: Simplify right side
    573,568.40x = 249,694,416,107.37
  5. Step 5: Solve for x
    x = 249,694,416,107.37/573,568.40
  6. Step 6: Final answer
    x = 435,335.03

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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.