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Finding the Fourth Proportional to 372,696.60, 514,367.58 and 211,603.80

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Solution

The fourth proportional to 372,696.60, 514,367.58 and 211,603.80 is: 292,039.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,696.60 : 514,367.58 = 211,603.80 : x
  2. Step 2: Convert to fraction form
    372,696.60/514,367.58 = 211,603.80/x
  3. Step 3: Cross multiply
    372,696.60x = 514,367.58 × 211,603.80
  4. Step 4: Simplify right side
    372,696.60x = 108,842,134,524.80
  5. Step 5: Solve for x
    x = 108,842,134,524.80/372,696.60
  6. Step 6: Final answer
    x = 292,039.52

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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.