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Finding the Fourth Proportional to 653,049.49, 979,197.11 and 253,223.18

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Solution

The fourth proportional to 653,049.49, 979,197.11 and 253,223.18 is: 379,688.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,049.49 : 979,197.11 = 253,223.18 : x
  2. Step 2: Convert to fraction form
    653,049.49/979,197.11 = 253,223.18/x
  3. Step 3: Cross multiply
    653,049.49x = 979,197.11 × 253,223.18
  4. Step 4: Simplify right side
    653,049.49x = 247,955,406,041.01
  5. Step 5: Solve for x
    x = 247,955,406,041.01/653,049.49
  6. Step 6: Final answer
    x = 379,688.54

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Double scale
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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.