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Finding the Fourth Proportional to 707,579.39, 976,458.84 and 385,291.73

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Solution

The fourth proportional to 707,579.39, 976,458.84 and 385,291.73 is: 531,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,579.39 : 976,458.84 = 385,291.73 : x
  2. Step 2: Convert to fraction form
    707,579.39/976,458.84 = 385,291.73/x
  3. Step 3: Cross multiply
    707,579.39x = 976,458.84 × 385,291.73
  4. Step 4: Simplify right side
    707,579.39x = 376,221,515,737.39
  5. Step 5: Solve for x
    x = 376,221,515,737.39/707,579.39
  6. Step 6: Final answer
    x = 531,702.20

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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.