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Finding the Fourth Proportional to 335,406.66, 502,804.52 and 215,496.20

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Solution

The fourth proportional to 335,406.66, 502,804.52 and 215,496.20 is: 323,048.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,406.66 : 502,804.52 = 215,496.20 : x
  2. Step 2: Convert to fraction form
    335,406.66/502,804.52 = 215,496.20/x
  3. Step 3: Cross multiply
    335,406.66x = 502,804.52 × 215,496.20
  4. Step 4: Simplify right side
    335,406.66x = 108,352,463,402.82
  5. Step 5: Solve for x
    x = 108,352,463,402.82/335,406.66
  6. Step 6: Final answer
    x = 323,048.04

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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.