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Finding the Fourth Proportional to 573,320.70, 791,192.04 and 315,208.56

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Solution

The fourth proportional to 573,320.70, 791,192.04 and 315,208.56 is: 434,993.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,320.70 : 791,192.04 = 315,208.56 : x
  2. Step 2: Convert to fraction form
    573,320.70/791,192.04 = 315,208.56/x
  3. Step 3: Cross multiply
    573,320.70x = 791,192.04 × 315,208.56
  4. Step 4: Simplify right side
    573,320.70x = 249,390,503,611.86
  5. Step 5: Solve for x
    x = 249,390,503,611.86/573,320.70
  6. Step 6: Final answer
    x = 434,993.02

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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.