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Finding the Fourth Proportional to 374,470.29, 516,772.44 and 213,322.95

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Solution

The fourth proportional to 374,470.29, 516,772.44 and 213,322.95 is: 294,387.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,470.29 : 516,772.44 = 213,322.95 : x
  2. Step 2: Convert to fraction form
    374,470.29/516,772.44 = 213,322.95/x
  3. Step 3: Cross multiply
    374,470.29x = 516,772.44 × 213,322.95
  4. Step 4: Simplify right side
    374,470.29x = 110,239,421,379.50
  5. Step 5: Solve for x
    x = 110,239,421,379.50/374,470.29
  6. Step 6: Final answer
    x = 294,387.63

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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.