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Finding the Fourth Proportional to 573,394.52, 791,332.26 and 318,769.40

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Solution

The fourth proportional to 573,394.52, 791,332.26 and 318,769.40 is: 439,928.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,394.52 : 791,332.26 = 318,769.40 : x
  2. Step 2: Convert to fraction form
    573,394.52/791,332.26 = 318,769.40/x
  3. Step 3: Cross multiply
    573,394.52x = 791,332.26 × 318,769.40
  4. Step 4: Simplify right side
    573,394.52x = 252,252,509,720.84
  5. Step 5: Solve for x
    x = 252,252,509,720.84/573,394.52
  6. Step 6: Final answer
    x = 439,928.36

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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.