Home / 419,204.32-578,331.04-258,010.72

Finding the Fourth Proportional to 419,204.32, 578,331.04 and 258,010.72

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Solution

The fourth proportional to 419,204.32, 578,331.04 and 258,010.72 is: 355,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,204.32 : 578,331.04 = 258,010.72 : x
  2. Step 2: Convert to fraction form
    419,204.32/578,331.04 = 258,010.72/x
  3. Step 3: Cross multiply
    419,204.32x = 578,331.04 × 258,010.72
  4. Step 4: Simplify right side
    419,204.32x = 149,215,608,028.75
  5. Step 5: Solve for x
    x = 149,215,608,028.75/419,204.32
  6. Step 6: Final answer
    x = 355,949.60

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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.