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Finding the Fourth Proportional to 707,423.23, 976,261.61 and 385,151.01

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Solution

The fourth proportional to 707,423.23, 976,261.61 and 385,151.01 is: 531,517.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,423.23 : 976,261.61 = 385,151.01 : x
  2. Step 2: Convert to fraction form
    707,423.23/976,261.61 = 385,151.01/x
  3. Step 3: Cross multiply
    707,423.23x = 976,261.61 × 385,151.01
  4. Step 4: Simplify right side
    707,423.23x = 376,008,145,115.73
  5. Step 5: Solve for x
    x = 376,008,145,115.73/707,423.23
  6. Step 6: Final answer
    x = 531,517.95

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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.