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Finding the Fourth Proportional to 535,549.20, 803,323.80 and 161,523.60

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Solution

The fourth proportional to 535,549.20, 803,323.80 and 161,523.60 is: 242,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,549.20 : 803,323.80 = 161,523.60 : x
  2. Step 2: Convert to fraction form
    535,549.20/803,323.80 = 161,523.60/x
  3. Step 3: Cross multiply
    535,549.20x = 803,323.80 × 161,523.60
  4. Step 4: Simplify right side
    535,549.20x = 129,755,752,141.68
  5. Step 5: Solve for x
    x = 129,755,752,141.68/535,549.20
  6. Step 6: Final answer
    x = 242,285.40

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Similar ratio
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1.5x scale

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.