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Finding the Fourth Proportional to 707,322.06, 976,104.56 and 385,034.58

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Solution

The fourth proportional to 707,322.06, 976,104.56 and 385,034.58 is: 531,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,322.06 : 976,104.56 = 385,034.58 : x
  2. Step 2: Convert to fraction form
    707,322.06/976,104.56 = 385,034.58/x
  3. Step 3: Cross multiply
    707,322.06x = 976,104.56 × 385,034.58
  4. Step 4: Simplify right side
    707,322.06x = 375,834,005,598.88
  5. Step 5: Solve for x
    x = 375,834,005,598.88/707,322.06
  6. Step 6: Final answer
    x = 531,347.78

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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.