Home / 624,478.06-861,786.03-338,004.28

Finding the Fourth Proportional to 624,478.06, 861,786.03 and 338,004.28

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Solution

The fourth proportional to 624,478.06, 861,786.03 and 338,004.28 is: 466,449.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,478.06 : 861,786.03 = 338,004.28 : x
  2. Step 2: Convert to fraction form
    624,478.06/861,786.03 = 338,004.28/x
  3. Step 3: Cross multiply
    624,478.06x = 861,786.03 × 338,004.28
  4. Step 4: Simplify right side
    624,478.06x = 291,287,366,584.21
  5. Step 5: Solve for x
    x = 291,287,366,584.21/624,478.06
  6. Step 6: Final answer
    x = 466,449.32

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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.