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Finding the Fourth Proportional to 573,682.80, 791,668.44 and 312,031.38

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Solution

The fourth proportional to 573,682.80, 791,668.44 and 312,031.38 is: 430,595.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,682.80 : 791,668.44 = 312,031.38 : x
  2. Step 2: Convert to fraction form
    573,682.80/791,668.44 = 312,031.38/x
  3. Step 3: Cross multiply
    573,682.80x = 791,668.44 × 312,031.38
  4. Step 4: Simplify right side
    573,682.80x = 247,025,395,835.65
  5. Step 5: Solve for x
    x = 247,025,395,835.65/573,682.80
  6. Step 6: Final answer
    x = 430,595.79

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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.