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Finding the Fourth Proportional to 573,860.42, 791,933.45 and 315,740.75

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Solution

The fourth proportional to 573,860.42, 791,933.45 and 315,740.75 is: 435,725.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,860.42 : 791,933.45 = 315,740.75 : x
  2. Step 2: Convert to fraction form
    573,860.42/791,933.45 = 315,740.75/x
  3. Step 3: Cross multiply
    573,860.42x = 791,933.45 × 315,740.75
  4. Step 4: Simplify right side
    573,860.42x = 250,045,661,453.09
  5. Step 5: Solve for x
    x = 250,045,661,453.09/573,860.42
  6. Step 6: Final answer
    x = 435,725.57

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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.