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Finding the Fourth Proportional to 573,858.42, 791,930.69 and 315,738.75

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Solution

The fourth proportional to 573,858.42, 791,930.69 and 315,738.75 is: 435,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,858.42 : 791,930.69 = 315,738.75 : x
  2. Step 2: Convert to fraction form
    573,858.42/791,930.69 = 315,738.75/x
  3. Step 3: Cross multiply
    573,858.42x = 791,930.69 × 315,738.75
  4. Step 4: Simplify right side
    573,858.42x = 250,043,208,722.30
  5. Step 5: Solve for x
    x = 250,043,208,722.30/573,858.42
  6. Step 6: Final answer
    x = 435,722.82

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1.5x scale

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.