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Finding the Fourth Proportional to 707,582.88, 976,476.06 and 385,299.27

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Solution

The fourth proportional to 707,582.88, 976,476.06 and 385,299.27 is: 531,719.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,582.88 : 976,476.06 = 385,299.27 : x
  2. Step 2: Convert to fraction form
    707,582.88/976,476.06 = 385,299.27/x
  3. Step 3: Cross multiply
    707,582.88x = 976,476.06 × 385,299.27
  4. Step 4: Simplify right side
    707,582.88x = 376,235,513,090.48
  5. Step 5: Solve for x
    x = 376,235,513,090.48/707,582.88
  6. Step 6: Final answer
    x = 531,719.36

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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.