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Finding the Fourth Proportional to 363,926.88, 502,221.11 and 211,055.72

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Solution

The fourth proportional to 363,926.88, 502,221.11 and 211,055.72 is: 291,258.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,926.88 : 502,221.11 = 211,055.72 : x
  2. Step 2: Convert to fraction form
    363,926.88/502,221.11 = 211,055.72/x
  3. Step 3: Cross multiply
    363,926.88x = 502,221.11 × 211,055.72
  4. Step 4: Simplify right side
    363,926.88x = 105,996,637,970.25
  5. Step 5: Solve for x
    x = 105,996,637,970.25/363,926.88
  6. Step 6: Final answer
    x = 291,258.06

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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.