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Finding the Fourth Proportional to 543,944.40, 815,225.40 and 262,856.40

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Solution

The fourth proportional to 543,944.40, 815,225.40 and 262,856.40 is: 393,950.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,944.40 : 815,225.40 = 262,856.40 : x
  2. Step 2: Convert to fraction form
    543,944.40/815,225.40 = 262,856.40/x
  3. Step 3: Cross multiply
    543,944.40x = 815,225.40 × 262,856.40
  4. Step 4: Simplify right side
    543,944.40x = 214,287,213,832.56
  5. Step 5: Solve for x
    x = 214,287,213,832.56/543,944.40
  6. Step 6: Final answer
    x = 393,950.58

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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.