Home / 621,419.24-857,550.38-349,487.03

Finding the Fourth Proportional to 621,419.24, 857,550.38 and 349,487.03

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Solution

The fourth proportional to 621,419.24, 857,550.38 and 349,487.03 is: 482,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,419.24 : 857,550.38 = 349,487.03 : x
  2. Step 2: Convert to fraction form
    621,419.24/857,550.38 = 349,487.03/x
  3. Step 3: Cross multiply
    621,419.24x = 857,550.38 × 349,487.03
  4. Step 4: Simplify right side
    621,419.24x = 299,702,729,346.38
  5. Step 5: Solve for x
    x = 299,702,729,346.38/621,419.24
  6. Step 6: Final answer
    x = 482,287.50

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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.