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Finding the Fourth Proportional to 356,685.99, 492,279.24 and 225,875.56

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Solution

The fourth proportional to 356,685.99, 492,279.24 and 225,875.56 is: 311,741.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,685.99 : 492,279.24 = 225,875.56 : x
  2. Step 2: Convert to fraction form
    356,685.99/492,279.24 = 225,875.56/x
  3. Step 3: Cross multiply
    356,685.99x = 492,279.24 × 225,875.56
  4. Step 4: Simplify right side
    356,685.99x = 111,193,847,882.00
  5. Step 5: Solve for x
    x = 111,193,847,882.00/356,685.99
  6. Step 6: Final answer
    x = 311,741.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.