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Finding the Fourth Proportional to 330,908.58, 496,417.53 and 131,230.01

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Solution

The fourth proportional to 330,908.58, 496,417.53 and 131,230.01 is: 196,866.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,908.58 : 496,417.53 = 131,230.01 : x
  2. Step 2: Convert to fraction form
    330,908.58/496,417.53 = 131,230.01/x
  3. Step 3: Cross multiply
    330,908.58x = 496,417.53 × 131,230.01
  4. Step 4: Simplify right side
    330,908.58x = 65,144,874,943.99
  5. Step 5: Solve for x
    x = 65,144,874,943.99/330,908.58
  6. Step 6: Final answer
    x = 196,866.68

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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.