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Finding the Fourth Proportional to 543,838.60, 816,276.78 and 333,886.60

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Solution

The fourth proportional to 543,838.60, 816,276.78 and 333,886.60 is: 501,148.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,838.60 : 816,276.78 = 333,886.60 : x
  2. Step 2: Convert to fraction form
    543,838.60/816,276.78 = 333,886.60/x
  3. Step 3: Cross multiply
    543,838.60x = 816,276.78 × 333,886.60
  4. Step 4: Simplify right side
    543,838.60x = 272,543,878,733.15
  5. Step 5: Solve for x
    x = 272,543,878,733.15/543,838.60
  6. Step 6: Final answer
    x = 501,148.46

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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.