Home / 419,304.12-578,623.89-256,233.30

Finding the Fourth Proportional to 419,304.12, 578,623.89 and 256,233.30

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Solution

The fourth proportional to 419,304.12, 578,623.89 and 256,233.30 is: 353,592.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,304.12 : 578,623.89 = 256,233.30 : x
  2. Step 2: Convert to fraction form
    419,304.12/578,623.89 = 256,233.30/x
  3. Step 3: Cross multiply
    419,304.12x = 578,623.89 × 256,233.30
  4. Step 4: Simplify right side
    419,304.12x = 148,262,707,770.64
  5. Step 5: Solve for x
    x = 148,262,707,770.64/419,304.12
  6. Step 6: Final answer
    x = 353,592.30

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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.