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Finding the Fourth Proportional to 777,345.16, 1,166,017.74 and 444,687.88

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Solution

The fourth proportional to 777,345.16, 1,166,017.74 and 444,687.88 is: 667,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,345.16 : 1,166,017.74 = 444,687.88 : x
  2. Step 2: Convert to fraction form
    777,345.16/1,166,017.74 = 444,687.88/x
  3. Step 3: Cross multiply
    777,345.16x = 1,166,017.74 × 444,687.88
  4. Step 4: Simplify right side
    777,345.16x = 518,513,948,789.46
  5. Step 5: Solve for x
    x = 518,513,948,789.46/777,345.16
  6. Step 6: Final answer
    x = 667,031.81

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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.