Home / 449,251.53-619,979.90-245,315.40

Finding the Fourth Proportional to 449,251.53, 619,979.90 and 245,315.40

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Solution

The fourth proportional to 449,251.53, 619,979.90 and 245,315.40 is: 338,542.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,251.53 : 619,979.90 = 245,315.40 : x
  2. Step 2: Convert to fraction form
    449,251.53/619,979.90 = 245,315.40/x
  3. Step 3: Cross multiply
    449,251.53x = 619,979.90 × 245,315.40
  4. Step 4: Simplify right side
    449,251.53x = 152,090,615,933.88
  5. Step 5: Solve for x
    x = 152,090,615,933.88/449,251.53
  6. Step 6: Final answer
    x = 338,542.23

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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.