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Finding the Fourth Proportional to 598,178.40, 825,463.28 and 329,906.40

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Solution

The fourth proportional to 598,178.40, 825,463.28 and 329,906.40 is: 455,258.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,178.40 : 825,463.28 = 329,906.40 : x
  2. Step 2: Convert to fraction form
    598,178.40/825,463.28 = 329,906.40/x
  3. Step 3: Cross multiply
    598,178.40x = 825,463.28 × 329,906.40
  4. Step 4: Simplify right side
    598,178.40x = 272,325,619,036.99
  5. Step 5: Solve for x
    x = 272,325,619,036.99/598,178.40
  6. Step 6: Final answer
    x = 455,258.20

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1.5x scale

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.