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Finding the Fourth Proportional to 410,990.76, 616,486.23 and 268,955.64

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Solution

The fourth proportional to 410,990.76, 616,486.23 and 268,955.64 is: 403,433.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,990.76 : 616,486.23 = 268,955.64 : x
  2. Step 2: Convert to fraction form
    410,990.76/616,486.23 = 268,955.64/x
  3. Step 3: Cross multiply
    410,990.76x = 616,486.23 × 268,955.64
  4. Step 4: Simplify right side
    410,990.76x = 165,807,448,540.84
  5. Step 5: Solve for x
    x = 165,807,448,540.84/410,990.76
  6. Step 6: Final answer
    x = 403,433.52

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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.