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Finding the Fourth Proportional to 707,675.54, 976,561.11 and 385,366.41

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Solution

The fourth proportional to 707,675.54, 976,561.11 and 385,366.41 is: 531,788.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,675.54 : 976,561.11 = 385,366.41 : x
  2. Step 2: Convert to fraction form
    707,675.54/976,561.11 = 385,366.41/x
  3. Step 3: Cross multiply
    707,675.54x = 976,561.11 × 385,366.41
  4. Step 4: Simplify right side
    707,675.54x = 376,333,849,106.32
  5. Step 5: Solve for x
    x = 376,333,849,106.32/707,675.54
  6. Step 6: Final answer
    x = 531,788.69

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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.