Home / 628,195.42-941,374.59-390,816.82

Finding the Fourth Proportional to 628,195.42, 941,374.59 and 390,816.82

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Solution

The fourth proportional to 628,195.42, 941,374.59 and 390,816.82 is: 585,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,195.42 : 941,374.59 = 390,816.82 : x
  2. Step 2: Convert to fraction form
    628,195.42/941,374.59 = 390,816.82/x
  3. Step 3: Cross multiply
    628,195.42x = 941,374.59 × 390,816.82
  4. Step 4: Simplify right side
    628,195.42x = 367,905,023,692.60
  5. Step 5: Solve for x
    x = 367,905,023,692.60/628,195.42
  6. Step 6: Final answer
    x = 585,653.78

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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.