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Finding the Fourth Proportional to 361,585.84, 498,935.90 and 200,440.76

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Solution

The fourth proportional to 361,585.84, 498,935.90 and 200,440.76 is: 276,579.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,585.84 : 498,935.90 = 200,440.76 : x
  2. Step 2: Convert to fraction form
    361,585.84/498,935.90 = 200,440.76/x
  3. Step 3: Cross multiply
    361,585.84x = 498,935.90 × 200,440.76
  4. Step 4: Simplify right side
    361,585.84x = 100,007,090,987.28
  5. Step 5: Solve for x
    x = 100,007,090,987.28/361,585.84
  6. Step 6: Final answer
    x = 276,579.11

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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.