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Finding the Fourth Proportional to 363,253.78, 501,282.37 and 210,298.45

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Solution

The fourth proportional to 363,253.78, 501,282.37 and 210,298.45 is: 290,207.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,253.78 : 501,282.37 = 210,298.45 : x
  2. Step 2: Convert to fraction form
    363,253.78/501,282.37 = 210,298.45/x
  3. Step 3: Cross multiply
    363,253.78x = 501,282.37 × 210,298.45
  4. Step 4: Simplify right side
    363,253.78x = 105,418,905,423.33
  5. Step 5: Solve for x
    x = 105,418,905,423.33/363,253.78
  6. Step 6: Final answer
    x = 290,207.32

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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.