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Finding the Fourth Proportional to 707,550.82, 976,407.48 and 385,255.06

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Solution

The fourth proportional to 707,550.82, 976,407.48 and 385,255.06 is: 531,645.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,550.82 : 976,407.48 = 385,255.06 : x
  2. Step 2: Convert to fraction form
    707,550.82/976,407.48 = 385,255.06/x
  3. Step 3: Cross multiply
    707,550.82x = 976,407.48 × 385,255.06
  4. Step 4: Simplify right side
    707,550.82x = 376,165,922,291.85
  5. Step 5: Solve for x
    x = 376,165,922,291.85/707,550.82
  6. Step 6: Final answer
    x = 531,645.09

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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.