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Finding the Fourth Proportional to 609,096.28, 913,705.28 and 209,684.20

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Solution

The fourth proportional to 609,096.28, 913,705.28 and 209,684.20 is: 314,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,096.28 : 913,705.28 = 209,684.20 : x
  2. Step 2: Convert to fraction form
    609,096.28/913,705.28 = 209,684.20/x
  3. Step 3: Cross multiply
    609,096.28x = 913,705.28 × 209,684.20
  4. Step 4: Simplify right side
    609,096.28x = 191,589,560,672.58
  5. Step 5: Solve for x
    x = 191,589,560,672.58/609,096.28
  6. Step 6: Final answer
    x = 314,547.25

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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.