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Finding the Fourth Proportional to 335,371.91, 502,467.35 and 315,393.66

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Solution

The fourth proportional to 335,371.91, 502,467.35 and 315,393.66 is: 472,535.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,371.91 : 502,467.35 = 315,393.66 : x
  2. Step 2: Convert to fraction form
    335,371.91/502,467.35 = 315,393.66/x
  3. Step 3: Cross multiply
    335,371.91x = 502,467.35 × 315,393.66
  4. Step 4: Simplify right side
    335,371.91x = 158,475,014,970.03
  5. Step 5: Solve for x
    x = 158,475,014,970.03/335,371.91
  6. Step 6: Final answer
    x = 472,535.15

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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.