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Finding the Fourth Proportional to 543,990.54, 750,621.15 and 314,462.46

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Solution

The fourth proportional to 543,990.54, 750,621.15 and 314,462.46 is: 433,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,990.54 : 750,621.15 = 314,462.46 : x
  2. Step 2: Convert to fraction form
    543,990.54/750,621.15 = 314,462.46/x
  3. Step 3: Cross multiply
    543,990.54x = 750,621.15 × 314,462.46
  4. Step 4: Simplify right side
    543,990.54x = 236,042,173,357.03
  5. Step 5: Solve for x
    x = 236,042,173,357.03/543,990.54
  6. Step 6: Final answer
    x = 433,908.60

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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.