Home / 449,239.64-619,975.80-245,309.54

Finding the Fourth Proportional to 449,239.64, 619,975.80 and 245,309.54

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Solution

The fourth proportional to 449,239.64, 619,975.80 and 245,309.54 is: 338,540.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,239.64 : 619,975.80 = 245,309.54 : x
  2. Step 2: Convert to fraction form
    449,239.64/619,975.80 = 245,309.54/x
  3. Step 3: Cross multiply
    449,239.64x = 619,975.80 × 245,309.54
  4. Step 4: Simplify right side
    449,239.64x = 152,085,975,209.25
  5. Step 5: Solve for x
    x = 152,085,975,209.25/449,239.64
  6. Step 6: Final answer
    x = 338,540.87

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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.