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Finding the Fourth Proportional to 4,944.40, 7,417.80 and 3,486.40

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Solution

The fourth proportional to 4,944.40, 7,417.80 and 3,486.40 is: 5,230.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,944.40 : 7,417.80 = 3,486.40 : x
  2. Step 2: Convert to fraction form
    4,944.40/7,417.80 = 3,486.40/x
  3. Step 3: Cross multiply
    4,944.40x = 7,417.80 × 3,486.40
  4. Step 4: Simplify right side
    4,944.40x = 25,861,417.92
  5. Step 5: Solve for x
    x = 25,861,417.92/4,944.40
  6. Step 6: Final answer
    x = 5,230.45

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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.