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Finding the Fourth Proportional to 493,376.64, 740,360.20 and 212,893.88

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Solution

The fourth proportional to 493,376.64, 740,360.20 and 212,893.88 is: 319,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,376.64 : 740,360.20 = 212,893.88 : x
  2. Step 2: Convert to fraction form
    493,376.64/740,360.20 = 212,893.88/x
  3. Step 3: Cross multiply
    493,376.64x = 740,360.20 × 212,893.88
  4. Step 4: Simplify right side
    493,376.64x = 157,618,155,575.58
  5. Step 5: Solve for x
    x = 157,618,155,575.58/493,376.64
  6. Step 6: Final answer
    x = 319,468.22

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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.