Home / 621,588.09-857,867.46-349,667.46

Finding the Fourth Proportional to 621,588.09, 857,867.46 and 349,667.46

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Solution

The fourth proportional to 621,588.09, 857,867.46 and 349,667.46 is: 482,583.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,588.09 : 857,867.46 = 349,667.46 : x
  2. Step 2: Convert to fraction form
    621,588.09/857,867.46 = 349,667.46/x
  3. Step 3: Cross multiply
    621,588.09x = 857,867.46 × 349,667.46
  4. Step 4: Simplify right side
    621,588.09x = 299,968,335,754.85
  5. Step 5: Solve for x
    x = 299,968,335,754.85/621,588.09
  6. Step 6: Final answer
    x = 482,583.79

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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.