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Finding the Fourth Proportional to 707,181.87, 975,908.07 and 384,891.93

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Solution

The fourth proportional to 707,181.87, 975,908.07 and 384,891.93 is: 531,149.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,181.87 : 975,908.07 = 384,891.93 : x
  2. Step 2: Convert to fraction form
    707,181.87/975,908.07 = 384,891.93/x
  3. Step 3: Cross multiply
    707,181.87x = 975,908.07 × 384,891.93
  4. Step 4: Simplify right side
    707,181.87x = 375,619,140,564.88
  5. Step 5: Solve for x
    x = 375,619,140,564.88/707,181.87
  6. Step 6: Final answer
    x = 531,149.28

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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.