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Finding the Fourth Proportional to 361,034.79, 498,261.45 and 199,889.84

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Solution

The fourth proportional to 361,034.79, 498,261.45 and 199,889.84 is: 275,866.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,034.79 : 498,261.45 = 199,889.84 : x
  2. Step 2: Convert to fraction form
    361,034.79/498,261.45 = 199,889.84/x
  3. Step 3: Cross multiply
    361,034.79x = 498,261.45 × 199,889.84
  4. Step 4: Simplify right side
    361,034.79x = 99,597,402,264.60
  5. Step 5: Solve for x
    x = 99,597,402,264.60/361,034.79
  6. Step 6: Final answer
    x = 275,866.49

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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.