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Finding the Fourth Proportional to 551,873.28, 760,982.40 and 372,714.24

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Solution

The fourth proportional to 551,873.28, 760,982.40 and 372,714.24 is: 513,938.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,873.28 : 760,982.40 = 372,714.24 : x
  2. Step 2: Convert to fraction form
    551,873.28/760,982.40 = 372,714.24/x
  3. Step 3: Cross multiply
    551,873.28x = 760,982.40 × 372,714.24
  4. Step 4: Simplify right side
    551,873.28x = 283,628,976,869.38
  5. Step 5: Solve for x
    x = 283,628,976,869.38/551,873.28
  6. Step 6: Final answer
    x = 513,938.59

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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.