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Finding the Fourth Proportional to 393,527.97, 543,018.74 and 223,765.74

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Solution

The fourth proportional to 393,527.97, 543,018.74 and 223,765.74 is: 308,768.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,527.97 : 543,018.74 = 223,765.74 : x
  2. Step 2: Convert to fraction form
    393,527.97/543,018.74 = 223,765.74/x
  3. Step 3: Cross multiply
    393,527.97x = 543,018.74 × 223,765.74
  4. Step 4: Simplify right side
    393,527.97x = 121,508,989,071.14
  5. Step 5: Solve for x
    x = 121,508,989,071.14/393,527.97
  6. Step 6: Final answer
    x = 308,768.37

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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.