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Finding the Fourth Proportional to 553,119.36, 828,979.20 and 353,362.56

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Solution

The fourth proportional to 553,119.36, 828,979.20 and 353,362.56 is: 529,596.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,119.36 : 828,979.20 = 353,362.56 : x
  2. Step 2: Convert to fraction form
    553,119.36/828,979.20 = 353,362.56/x
  3. Step 3: Cross multiply
    553,119.36x = 828,979.20 × 353,362.56
  4. Step 4: Simplify right side
    553,119.36x = 292,930,212,298.75
  5. Step 5: Solve for x
    x = 292,930,212,298.75/553,119.36
  6. Step 6: Final answer
    x = 529,596.74

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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.