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Finding the Fourth Proportional to 457,095.52, 630,732.56 and 255,891.68

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Solution

The fourth proportional to 457,095.52, 630,732.56 and 255,891.68 is: 353,097.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,095.52 : 630,732.56 = 255,891.68 : x
  2. Step 2: Convert to fraction form
    457,095.52/630,732.56 = 255,891.68/x
  3. Step 3: Cross multiply
    457,095.52x = 630,732.56 × 255,891.68
  4. Step 4: Simplify right side
    457,095.52x = 161,399,214,409.10
  5. Step 5: Solve for x
    x = 161,399,214,409.10/457,095.52
  6. Step 6: Final answer
    x = 353,097.34

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Why These Related Problems?

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