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Finding the Fourth Proportional to 545,530.60, 818,295.90 and 171,668.20

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Solution

The fourth proportional to 545,530.60, 818,295.90 and 171,668.20 is: 257,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,530.60 : 818,295.90 = 171,668.20 : x
  2. Step 2: Convert to fraction form
    545,530.60/818,295.90 = 171,668.20/x
  3. Step 3: Cross multiply
    545,530.60x = 818,295.90 × 171,668.20
  4. Step 4: Simplify right side
    545,530.60x = 140,475,384,220.38
  5. Step 5: Solve for x
    x = 140,475,384,220.38/545,530.60
  6. Step 6: Final answer
    x = 257,502.30

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Similar ratio
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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.