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Finding the Fourth Proportional to 650,581.88, 898,357.03 and 409,268.30

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Solution

The fourth proportional to 650,581.88, 898,357.03 and 409,268.30 is: 565,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,581.88 : 898,357.03 = 409,268.30 : x
  2. Step 2: Convert to fraction form
    650,581.88/898,357.03 = 409,268.30/x
  3. Step 3: Cross multiply
    650,581.88x = 898,357.03 × 409,268.30
  4. Step 4: Simplify right side
    650,581.88x = 367,669,048,946.19
  5. Step 5: Solve for x
    x = 367,669,048,946.19/650,581.88
  6. Step 6: Final answer
    x = 565,138.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.