Home / 628,228.31-942,342.56-439,058.16

Finding the Fourth Proportional to 628,228.31, 942,342.56 and 439,058.16

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Solution

The fourth proportional to 628,228.31, 942,342.56 and 439,058.16 is: 658,587.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,228.31 : 942,342.56 = 439,058.16 : x
  2. Step 2: Convert to fraction form
    628,228.31/942,342.56 = 439,058.16/x
  3. Step 3: Cross multiply
    628,228.31x = 942,342.56 × 439,058.16
  4. Step 4: Simplify right side
    628,228.31x = 413,743,188,288.00
  5. Step 5: Solve for x
    x = 413,743,188,288.00/628,228.31
  6. Step 6: Final answer
    x = 658,587.31

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.