Home / 638,566.40-957,043.20-323,110.40

Finding the Fourth Proportional to 638,566.40, 957,043.20 and 323,110.40

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Solution

The fourth proportional to 638,566.40, 957,043.20 and 323,110.40 is: 484,257.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,566.40 : 957,043.20 = 323,110.40 : x
  2. Step 2: Convert to fraction form
    638,566.40/957,043.20 = 323,110.40/x
  3. Step 3: Cross multiply
    638,566.40x = 957,043.20 × 323,110.40
  4. Step 4: Simplify right side
    638,566.40x = 309,230,611,169.28
  5. Step 5: Solve for x
    x = 309,230,611,169.28/638,566.40
  6. Step 6: Final answer
    x = 484,257.57

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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.