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Finding the Fourth Proportional to 369,536.60, 554,479.86 and 211,898.36

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Solution

The fourth proportional to 369,536.60, 554,479.86 and 211,898.36 is: 317,947.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,536.60 : 554,479.86 = 211,898.36 : x
  2. Step 2: Convert to fraction form
    369,536.60/554,479.86 = 211,898.36/x
  3. Step 3: Cross multiply
    369,536.60x = 554,479.86 × 211,898.36
  4. Step 4: Simplify right side
    369,536.60x = 117,493,372,987.03
  5. Step 5: Solve for x
    x = 117,493,372,987.03/369,536.60
  6. Step 6: Final answer
    x = 317,947.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.