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Finding the Fourth Proportional to 479,203.90, 717,310.05 and 352,986.46

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Solution

The fourth proportional to 479,203.90, 717,310.05 and 352,986.46 is: 528,377.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,203.90 : 717,310.05 = 352,986.46 : x
  2. Step 2: Convert to fraction form
    479,203.90/717,310.05 = 352,986.46/x
  3. Step 3: Cross multiply
    479,203.90x = 717,310.05 × 352,986.46
  4. Step 4: Simplify right side
    479,203.90x = 253,200,735,271.92
  5. Step 5: Solve for x
    x = 253,200,735,271.92/479,203.90
  6. Step 6: Final answer
    x = 528,377.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.