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Finding the Fourth Proportional to 386,935.44, 533,818.32 and 223,483.92

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Solution

The fourth proportional to 386,935.44, 533,818.32 and 223,483.92 is: 308,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,935.44 : 533,818.32 = 223,483.92 : x
  2. Step 2: Convert to fraction form
    386,935.44/533,818.32 = 223,483.92/x
  3. Step 3: Cross multiply
    386,935.44x = 533,818.32 × 223,483.92
  4. Step 4: Simplify right side
    386,935.44x = 119,299,810,721.41
  5. Step 5: Solve for x
    x = 119,299,810,721.41/386,935.44
  6. Step 6: Final answer
    x = 308,319.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.