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Finding the Fourth Proportional to 535,960.20, 803,940.30 and 161,983.20

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Solution

The fourth proportional to 535,960.20, 803,940.30 and 161,983.20 is: 242,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,960.20 : 803,940.30 = 161,983.20 : x
  2. Step 2: Convert to fraction form
    535,960.20/803,940.30 = 161,983.20/x
  3. Step 3: Cross multiply
    535,960.20x = 803,940.30 × 161,983.20
  4. Step 4: Simplify right side
    535,960.20x = 130,224,822,402.96
  5. Step 5: Solve for x
    x = 130,224,822,402.96/535,960.20
  6. Step 6: Final answer
    x = 242,974.80

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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.