Home / 628,863.48-867,924.72-370,787.76

Finding the Fourth Proportional to 628,863.48, 867,924.72 and 370,787.76

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Solution

The fourth proportional to 628,863.48, 867,924.72 and 370,787.76 is: 511,742.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,863.48 : 867,924.72 = 370,787.76 : x
  2. Step 2: Convert to fraction form
    628,863.48/867,924.72 = 370,787.76/x
  3. Step 3: Cross multiply
    628,863.48x = 867,924.72 × 370,787.76
  4. Step 4: Simplify right side
    628,863.48x = 321,815,862,777.43
  5. Step 5: Solve for x
    x = 321,815,862,777.43/628,863.48
  6. Step 6: Final answer
    x = 511,742.01

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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.