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Finding the Fourth Proportional to 531,997.50, 798,146.25 and 216,680.70

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Solution

The fourth proportional to 531,997.50, 798,146.25 and 216,680.70 is: 325,082.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,997.50 : 798,146.25 = 216,680.70 : x
  2. Step 2: Convert to fraction form
    531,997.50/798,146.25 = 216,680.70/x
  3. Step 3: Cross multiply
    531,997.50x = 798,146.25 × 216,680.70
  4. Step 4: Simplify right side
    531,997.50x = 172,942,888,152.38
  5. Step 5: Solve for x
    x = 172,942,888,152.38/531,997.50
  6. Step 6: Final answer
    x = 325,082.14

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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.