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Finding the Fourth Proportional to 675,842.49, 931,133.12 and 554,792.13

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Solution

The fourth proportional to 675,842.49, 931,133.12 and 554,792.13 is: 764,357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,842.49 : 931,133.12 = 554,792.13 : x
  2. Step 2: Convert to fraction form
    675,842.49/931,133.12 = 554,792.13/x
  3. Step 3: Cross multiply
    675,842.49x = 931,133.12 × 554,792.13
  4. Step 4: Simplify right side
    675,842.49x = 516,585,324,184.39
  5. Step 5: Solve for x
    x = 516,585,324,184.39/675,842.49
  6. Step 6: Final answer
    x = 764,357.57

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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.