Home / 415,979.40-624,625.20-238,832.40

Finding the Fourth Proportional to 415,979.40, 624,625.20 and 238,832.40

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Solution

The fourth proportional to 415,979.40, 624,625.20 and 238,832.40 is: 358,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,979.40 : 624,625.20 = 238,832.40 : x
  2. Step 2: Convert to fraction form
    415,979.40/624,625.20 = 238,832.40/x
  3. Step 3: Cross multiply
    415,979.40x = 624,625.20 × 238,832.40
  4. Step 4: Simplify right side
    415,979.40x = 149,180,735,616.48
  5. Step 5: Solve for x
    x = 149,180,735,616.48/415,979.40
  6. Step 6: Final answer
    x = 358,625.30

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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.