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Finding the Fourth Proportional to 719,959.14, 993,605.13 and 397,704.42

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Solution

The fourth proportional to 719,959.14, 993,605.13 and 397,704.42 is: 548,866.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,959.14 : 993,605.13 = 397,704.42 : x
  2. Step 2: Convert to fraction form
    719,959.14/993,605.13 = 397,704.42/x
  3. Step 3: Cross multiply
    719,959.14x = 993,605.13 × 397,704.42
  4. Step 4: Simplify right side
    719,959.14x = 395,161,151,935.68
  5. Step 5: Solve for x
    x = 395,161,151,935.68/719,959.14
  6. Step 6: Final answer
    x = 548,866.08

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1.5x scale

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.