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Finding the Fourth Proportional to 363,966.39, 502,275.60 and 211,095.18

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Solution

The fourth proportional to 363,966.39, 502,275.60 and 211,095.18 is: 291,312.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,966.39 : 502,275.60 = 211,095.18 : x
  2. Step 2: Convert to fraction form
    363,966.39/502,275.60 = 211,095.18/x
  3. Step 3: Cross multiply
    363,966.39x = 502,275.60 × 211,095.18
  4. Step 4: Simplify right side
    363,966.39x = 106,027,958,191.61
  5. Step 5: Solve for x
    x = 106,027,958,191.61/363,966.39
  6. Step 6: Final answer
    x = 291,312.50

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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.