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Finding the Fourth Proportional to 653,637.56, 980,457.11 and 204,360.79

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Solution

The fourth proportional to 653,637.56, 980,457.11 and 204,360.79 is: 306,541.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,637.56 : 980,457.11 = 204,360.79 : x
  2. Step 2: Convert to fraction form
    653,637.56/980,457.11 = 204,360.79/x
  3. Step 3: Cross multiply
    653,637.56x = 980,457.11 × 204,360.79
  4. Step 4: Simplify right side
    653,637.56x = 200,366,984,658.43
  5. Step 5: Solve for x
    x = 200,366,984,658.43/653,637.56
  6. Step 6: Final answer
    x = 306,541.42

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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.