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Finding the Fourth Proportional to 707,464.82, 976,295.58 and 385,174.28

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Solution

The fourth proportional to 707,464.82, 976,295.58 and 385,174.28 is: 531,537.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,464.82 : 976,295.58 = 385,174.28 : x
  2. Step 2: Convert to fraction form
    707,464.82/976,295.58 = 385,174.28/x
  3. Step 3: Cross multiply
    707,464.82x = 976,295.58 × 385,174.28
  4. Step 4: Simplify right side
    707,464.82x = 376,043,947,093.68
  5. Step 5: Solve for x
    x = 376,043,947,093.68/707,464.82
  6. Step 6: Final answer
    x = 531,537.31

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1.5x scale

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.