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Finding the Fourth Proportional to 707,287.68, 976,069.44 and 385,007.04

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Solution

The fourth proportional to 707,287.68, 976,069.44 and 385,007.04 is: 531,316.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,287.68 : 976,069.44 = 385,007.04 : x
  2. Step 2: Convert to fraction form
    707,287.68/976,069.44 = 385,007.04/x
  3. Step 3: Cross multiply
    707,287.68x = 976,069.44 × 385,007.04
  4. Step 4: Simplify right side
    707,287.68x = 375,793,605,928.86
  5. Step 5: Solve for x
    x = 375,793,605,928.86/707,287.68
  6. Step 6: Final answer
    x = 531,316.49

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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.