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Finding the Fourth Proportional to 656,015.20, 983,245.20 and 276,935.20

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Solution

The fourth proportional to 656,015.20, 983,245.20 and 276,935.20 is: 415,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,015.20 : 983,245.20 = 276,935.20 : x
  2. Step 2: Convert to fraction form
    656,015.20/983,245.20 = 276,935.20/x
  3. Step 3: Cross multiply
    656,015.20x = 983,245.20 × 276,935.20
  4. Step 4: Simplify right side
    656,015.20x = 272,295,206,111.04
  5. Step 5: Solve for x
    x = 272,295,206,111.04/656,015.20
  6. Step 6: Final answer
    x = 415,074.54

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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.