Home / 449,234.20-619,938.46-245,284.47

Finding the Fourth Proportional to 449,234.20, 619,938.46 and 245,284.47

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Solution

The fourth proportional to 449,234.20, 619,938.46 and 245,284.47 is: 338,489.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,234.20 : 619,938.46 = 245,284.47 : x
  2. Step 2: Convert to fraction form
    449,234.20/619,938.46 = 245,284.47/x
  3. Step 3: Cross multiply
    449,234.20x = 619,938.46 × 245,284.47
  4. Step 4: Simplify right side
    449,234.20x = 152,061,276,900.32
  5. Step 5: Solve for x
    x = 152,061,276,900.32/449,234.20
  6. Step 6: Final answer
    x = 338,489.98

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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.