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Finding the Fourth Proportional to 535,362.80, 803,044.20 and 219,657.20

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Solution

The fourth proportional to 535,362.80, 803,044.20 and 219,657.20 is: 329,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,362.80 : 803,044.20 = 219,657.20 : x
  2. Step 2: Convert to fraction form
    535,362.80/803,044.20 = 219,657.20/x
  3. Step 3: Cross multiply
    535,362.80x = 803,044.20 × 219,657.20
  4. Step 4: Simplify right side
    535,362.80x = 176,394,440,448.24
  5. Step 5: Solve for x
    x = 176,394,440,448.24/535,362.80
  6. Step 6: Final answer
    x = 329,485.80

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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.