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Finding the Fourth Proportional to 573,698.56, 791,723.52 and 315,586.48

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Solution

The fourth proportional to 573,698.56, 791,723.52 and 315,586.48 is: 435,520.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,698.56 : 791,723.52 = 315,586.48 : x
  2. Step 2: Convert to fraction form
    573,698.56/791,723.52 = 315,586.48/x
  3. Step 3: Cross multiply
    573,698.56x = 791,723.52 × 315,586.48
  4. Step 4: Simplify right side
    573,698.56x = 249,857,238,810.01
  5. Step 5: Solve for x
    x = 249,857,238,810.01/573,698.56
  6. Step 6: Final answer
    x = 435,520.07

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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.