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Finding the Fourth Proportional to 356,586.40, 492,024.72 and 229,232.80

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Solution

The fourth proportional to 356,586.40, 492,024.72 and 229,232.80 is: 316,299.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,586.40 : 492,024.72 = 229,232.80 : x
  2. Step 2: Convert to fraction form
    356,586.40/492,024.72 = 229,232.80/x
  3. Step 3: Cross multiply
    356,586.40x = 492,024.72 × 229,232.80
  4. Step 4: Simplify right side
    356,586.40x = 112,788,204,234.82
  5. Step 5: Solve for x
    x = 112,788,204,234.82/356,586.40
  6. Step 6: Final answer
    x = 316,299.79

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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.