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Finding the Fourth Proportional to 361,666.51, 499,097.40 and 200,521.60

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Solution

The fourth proportional to 361,666.51, 499,097.40 and 200,521.60 is: 276,718.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,666.51 : 499,097.40 = 200,521.60 : x
  2. Step 2: Convert to fraction form
    361,666.51/499,097.40 = 200,521.60/x
  3. Step 3: Cross multiply
    361,666.51x = 499,097.40 × 200,521.60
  4. Step 4: Simplify right side
    361,666.51x = 100,079,809,203.84
  5. Step 5: Solve for x
    x = 100,079,809,203.84/361,666.51
  6. Step 6: Final answer
    x = 276,718.49

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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.