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Finding the Fourth Proportional to 553,155.36, 829,033.20 and 353,398.56

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Solution

The fourth proportional to 553,155.36, 829,033.20 and 353,398.56 is: 529,650.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,155.36 : 829,033.20 = 353,398.56 : x
  2. Step 2: Convert to fraction form
    553,155.36/829,033.20 = 353,398.56/x
  3. Step 3: Cross multiply
    553,155.36x = 829,033.20 × 353,398.56
  4. Step 4: Simplify right side
    553,155.36x = 292,979,139,072.19
  5. Step 5: Solve for x
    x = 292,979,139,072.19/553,155.36
  6. Step 6: Final answer
    x = 529,650.73

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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.