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Finding the Fourth Proportional to 683,597.47, 943,300.87 and 397,113.43

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Solution

The fourth proportional to 683,597.47, 943,300.87 and 397,113.43 is: 547,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,597.47 : 943,300.87 = 397,113.43 : x
  2. Step 2: Convert to fraction form
    683,597.47/943,300.87 = 397,113.43/x
  3. Step 3: Cross multiply
    683,597.47x = 943,300.87 × 397,113.43
  4. Step 4: Simplify right side
    683,597.47x = 374,597,444,007.68
  5. Step 5: Solve for x
    x = 374,597,444,007.68/683,597.47
  6. Step 6: Final answer
    x = 547,979.56

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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.