Home / 449,234.63-619,939.07-245,284.91

Finding the Fourth Proportional to 449,234.63, 619,939.07 and 245,284.91

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Solution

The fourth proportional to 449,234.63, 619,939.07 and 245,284.91 is: 338,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,234.63 : 619,939.07 = 245,284.91 : x
  2. Step 2: Convert to fraction form
    449,234.63/619,939.07 = 245,284.91/x
  3. Step 3: Cross multiply
    449,234.63x = 619,939.07 × 245,284.91
  4. Step 4: Simplify right side
    449,234.63x = 152,061,697,764.01
  5. Step 5: Solve for x
    x = 152,061,697,764.01/449,234.63
  6. Step 6: Final answer
    x = 338,490.60

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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.