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Finding the Fourth Proportional to 374,412.54, 516,688.56 and 213,267.54

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Solution

The fourth proportional to 374,412.54, 516,688.56 and 213,267.54 is: 294,308.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,412.54 : 516,688.56 = 213,267.54 : x
  2. Step 2: Convert to fraction form
    374,412.54/516,688.56 = 213,267.54/x
  3. Step 3: Cross multiply
    374,412.54x = 516,688.56 × 213,267.54
  4. Step 4: Simplify right side
    374,412.54x = 110,192,898,137.34
  5. Step 5: Solve for x
    x = 110,192,898,137.34/374,412.54
  6. Step 6: Final answer
    x = 294,308.78

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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.