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Finding the Fourth Proportional to 367,356.28, 550,508.28 and 209,258.32

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Solution

The fourth proportional to 367,356.28, 550,508.28 and 209,258.32 is: 313,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,356.28 : 550,508.28 = 209,258.32 : x
  2. Step 2: Convert to fraction form
    367,356.28/550,508.28 = 209,258.32/x
  3. Step 3: Cross multiply
    367,356.28x = 550,508.28 × 209,258.32
  4. Step 4: Simplify right side
    367,356.28x = 115,198,437,818.89
  5. Step 5: Solve for x
    x = 115,198,437,818.89/367,356.28
  6. Step 6: Final answer
    x = 313,587.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.