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Finding the Fourth Proportional to 364,422.40, 502,903.60 and 203,273.28

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Solution

The fourth proportional to 364,422.40, 502,903.60 and 203,273.28 is: 280,517.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,422.40 : 502,903.60 = 203,273.28 : x
  2. Step 2: Convert to fraction form
    364,422.40/502,903.60 = 203,273.28/x
  3. Step 3: Cross multiply
    364,422.40x = 502,903.60 × 203,273.28
  4. Step 4: Simplify right side
    364,422.40x = 102,226,864,295.81
  5. Step 5: Solve for x
    x = 102,226,864,295.81/364,422.40
  6. Step 6: Final answer
    x = 280,517.51

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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.