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Finding the Fourth Proportional to 330,797.71, 456,332.60 and 216,143.43

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Solution

The fourth proportional to 330,797.71, 456,332.60 and 216,143.43 is: 298,168.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,797.71 : 456,332.60 = 216,143.43 : x
  2. Step 2: Convert to fraction form
    330,797.71/456,332.60 = 216,143.43/x
  3. Step 3: Cross multiply
    330,797.71x = 456,332.60 × 216,143.43
  4. Step 4: Simplify right side
    330,797.71x = 98,633,293,384.82
  5. Step 5: Solve for x
    x = 98,633,293,384.82/330,797.71
  6. Step 6: Final answer
    x = 298,168.01

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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.