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Finding the Fourth Proportional to 710,891.10, 1,066,523.46 and 255,528.54

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Solution

The fourth proportional to 710,891.10, 1,066,523.46 and 255,528.54 is: 383,359.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,891.10 : 1,066,523.46 = 255,528.54 : x
  2. Step 2: Convert to fraction form
    710,891.10/1,066,523.46 = 255,528.54/x
  3. Step 3: Cross multiply
    710,891.10x = 1,066,523.46 × 255,528.54
  4. Step 4: Simplify right side
    710,891.10x = 272,527,182,609.55
  5. Step 5: Solve for x
    x = 272,527,182,609.55/710,891.10
  6. Step 6: Final answer
    x = 383,359.96

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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.