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Finding the Fourth Proportional to 573,772.80, 791,825.76 and 315,660.96

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Solution

The fourth proportional to 573,772.80, 791,825.76 and 315,660.96 is: 435,622.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,772.80 : 791,825.76 = 315,660.96 : x
  2. Step 2: Convert to fraction form
    573,772.80/791,825.76 = 315,660.96/x
  3. Step 3: Cross multiply
    573,772.80x = 791,825.76 × 315,660.96
  4. Step 4: Simplify right side
    573,772.80x = 249,948,479,554.33
  5. Step 5: Solve for x
    x = 249,948,479,554.33/573,772.80
  6. Step 6: Final answer
    x = 435,622.74

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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.