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Finding the Fourth Proportional to 573,784.97, 791,812.22 and 315,646.83

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Solution

The fourth proportional to 573,784.97, 791,812.22 and 315,646.83 is: 435,586.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,784.97 : 791,812.22 = 315,646.83 : x
  2. Step 2: Convert to fraction form
    573,784.97/791,812.22 = 315,646.83/x
  3. Step 3: Cross multiply
    573,784.97x = 791,812.22 × 315,646.83
  4. Step 4: Simplify right side
    573,784.97x = 249,933,015,620.03
  5. Step 5: Solve for x
    x = 249,933,015,620.03/573,784.97
  6. Step 6: Final answer
    x = 435,586.55

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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.