Home / 628,268.40-867,029.85-356,347.35

Finding the Fourth Proportional to 628,268.40, 867,029.85 and 356,347.35

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Solution

The fourth proportional to 628,268.40, 867,029.85 and 356,347.35 is: 491,770.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,268.40 : 867,029.85 = 356,347.35 : x
  2. Step 2: Convert to fraction form
    628,268.40/867,029.85 = 356,347.35/x
  3. Step 3: Cross multiply
    628,268.40x = 867,029.85 × 356,347.35
  4. Step 4: Simplify right side
    628,268.40x = 308,963,789,418.40
  5. Step 5: Solve for x
    x = 308,963,789,418.40/628,268.40
  6. Step 6: Final answer
    x = 491,770.38

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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.