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Finding the Fourth Proportional to 346,732.48, 520,236.72 and 133,443.12

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Solution

The fourth proportional to 346,732.48, 520,236.72 and 133,443.12 is: 200,217.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,732.48 : 520,236.72 = 133,443.12 : x
  2. Step 2: Convert to fraction form
    346,732.48/520,236.72 = 133,443.12/x
  3. Step 3: Cross multiply
    346,732.48x = 520,236.72 × 133,443.12
  4. Step 4: Simplify right side
    346,732.48x = 69,422,011,055.37
  5. Step 5: Solve for x
    x = 69,422,011,055.37/346,732.48
  6. Step 6: Final answer
    x = 200,217.79

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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.