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Finding the Fourth Proportional to 573,251.31, 791,077.86 and 315,122.67

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Solution

The fourth proportional to 573,251.31, 791,077.86 and 315,122.67 is: 434,864.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,251.31 : 791,077.86 = 315,122.67 : x
  2. Step 2: Convert to fraction form
    573,251.31/791,077.86 = 315,122.67/x
  3. Step 3: Cross multiply
    573,251.31x = 791,077.86 × 315,122.67
  4. Step 4: Simplify right side
    573,251.31x = 249,286,567,421.09
  5. Step 5: Solve for x
    x = 249,286,567,421.09/573,251.31
  6. Step 6: Final answer
    x = 434,864.37

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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.