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Finding the Fourth Proportional to 374,795.34, 517,217.65 and 211,486.51

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Solution

The fourth proportional to 374,795.34, 517,217.65 and 211,486.51 is: 291,851.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,795.34 : 517,217.65 = 211,486.51 : x
  2. Step 2: Convert to fraction form
    374,795.34/517,217.65 = 211,486.51/x
  3. Step 3: Cross multiply
    374,795.34x = 517,217.65 × 211,486.51
  4. Step 4: Simplify right side
    374,795.34x = 109,384,555,826.71
  5. Step 5: Solve for x
    x = 109,384,555,826.71/374,795.34
  6. Step 6: Final answer
    x = 291,851.43

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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.